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1243054937 is a prime number
BaseRepresentation
bin100101000010111…
…1000001101011001
310012122000201210202
41022011320031121
510021210224222
6323202551545
742542535605
oct11205701531
93178021722
101243054937
11588743633
122a83685b5
1316a6ba687
14bb13a505
15741e2892
hex4a178359

1243054937 has 2 divisors, whose sum is σ = 1243054938. Its totient is φ = 1243054936.

The previous prime is 1243054867. The next prime is 1243054949. The reversal of 1243054937 is 7394503421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 995023936 + 248031001 = 31544^2 + 15749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243054937 - 212 = 1243050841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243054937.

It is not a weakly prime, because it can be changed into another prime (1243054037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621527468 + 621527469.

It is an arithmetic number, because the mean of its divisors is an integer number (621527469).

Almost surely, 21243054937 is an apocalyptic number.

It is an amenable number.

1243054937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243054937 is an equidigital number, since it uses as much as digits as its factorization.

1243054937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1243054937 is about 35256.9842300784. The cubic root of 1243054937 is about 1075.2186141294.

The spelling of 1243054937 in words is "one billion, two hundred forty-three million, fifty-four thousand, nine hundred thirty-seven".