7985274131 has 2 divisors, whose sum is σ = 7985274132. Its totient is φ = 7985274130.

The previous prime is 7985274127. The next prime is 7985274173. The reversal of 7985274131 is 1314725897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7985274131 - 2² = 7985274127 is a prime.

It is a super-2 number, since 2×7985274131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7985274181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992637065 + 3992637066.

It is an arithmetic number, because the mean of its divisors is an integer number (3992637066).

Almost surely, 2^7985274131 is an apocalyptic number.

7985274131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985274131 is an equidigital number, since it uses as much as digits as its factorization.

7985274131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 7985274131 is about 89360.3610724576. The cubic root of 7985274131 is about 1998.7720905234.

The spelling of 7985274131 in words is "seven billion, nine hundred eighty-five million, two hundred seventy-four thousand, one hundred thirty-one".