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1309056037 is a prime number
BaseRepresentation
bin100111000000110…
…1001110000100101
310101020012221021221
41032001221300211
510140104243122
6333521340341
744303535622
oct11601516045
93336187257
101309056037
11611a231a3
123064976b1
1317b288c93
14c5bdb349
1579dcd6c7
hex4e069c25

1309056037 has 2 divisors, whose sum is σ = 1309056038. Its totient is φ = 1309056036.

The previous prime is 1309056013. The next prime is 1309056107. The reversal of 1309056037 is 7306509031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1297008196 + 12047841 = 36014^2 + 3471^2 .

It is an emirp because it is prime and its reverse (7306509031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1309056037 - 215 = 1309023269 is a prime.

It is a super-2 number, since 2×13090560372 = 3427255416012290738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1309055993 and 1309056011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1309053037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654528018 + 654528019.

It is an arithmetic number, because the mean of its divisors is an integer number (654528019).

Almost surely, 21309056037 is an apocalyptic number.

It is an amenable number.

1309056037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309056037 is an equidigital number, since it uses as much as digits as its factorization.

1309056037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 1309056037 is about 36180.8794392839. The cubic root of 1309056037 is about 1093.9213015745.

The spelling of 1309056037 in words is "one billion, three hundred nine million, fifty-six thousand, thirty-seven".