196507631 has 2 divisors, whose sum is σ = 196507632. Its totient is φ = 196507630.

The previous prime is 196507621. The next prime is 196507643. The reversal of 196507631 is 136705691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196507631 - 2¹⁸ = 196245487 is a prime.

It is a super-2 number, since 2×196507631² = 77230498082464322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196507601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98253815 + 98253816.

It is an arithmetic number, because the mean of its divisors is an integer number (98253816).

Almost surely, 2^196507631 is an apocalyptic number.

196507631 is a deficient number, since it is larger than the sum of its proper divisors (1).

196507631 is an equidigital number, since it uses as much as digits as its factorization.

196507631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 196507631 is about 14018.1179549895. The cubic root of 196507631 is about 581.3796239830.

The spelling of 196507631 in words is "one hundred ninety-six million, five hundred seven thousand, six hundred thirty-one".