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1312352501 is a prime number
BaseRepresentation
bin100111000111000…
…1110100011110101
310101110102102012012
41032032032203311
510141430240001
6334120134005
744343545405
oct11616164365
93343372165
101312352501
11613874949
12307607305
1317bb71555
14c6418805
157a3302bb
hex4e38e8f5

1312352501 has 2 divisors, whose sum is σ = 1312352502. Its totient is φ = 1312352500.

The previous prime is 1312352491. The next prime is 1312352527. The reversal of 1312352501 is 1052532131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1224930001 + 87422500 = 34999^2 + 9350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312352501 - 230 = 238610677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312352801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656176250 + 656176251.

It is an arithmetic number, because the mean of its divisors is an integer number (656176251).

Almost surely, 21312352501 is an apocalyptic number.

It is an amenable number.

1312352501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312352501 is an equidigital number, since it uses as much as digits as its factorization.

1312352501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1312352501 is about 36226.4061286791. The cubic root of 1312352501 is about 1094.8387691692.

Adding to 1312352501 its reverse (1052532131), we get a palindrome (2364884632).

The spelling of 1312352501 in words is "one billion, three hundred twelve million, three hundred fifty-two thousand, five hundred one".