197246937931 has 2 divisors, whose sum is σ = 197246937932. Its totient is φ = 197246937930.

The previous prime is 197246937841. The next prime is 197246938033. The reversal of 197246937931 is 139739642791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197246937931 - 2²⁹ = 196710067019 is a prime.

It is a super-2 number, since 2×197246937931² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197246937931.

It is not a weakly prime, because it can be changed into another prime (197246937031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98623468965 + 98623468966.

It is an arithmetic number, because the mean of its divisors is an integer number (98623468966).

Almost surely, 2^197246937931 is an apocalyptic number.

197246937931 is a deficient number, since it is larger than the sum of its proper divisors (1).

197246937931 is an equidigital number, since it uses as much as digits as its factorization.

197246937931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15431472, while the sum is 61.

The spelling of 197246937931 in words is "one hundred ninety-seven billion, two hundred forty-six million, nine hundred thirty-seven thousand, nine hundred thirty-one".