196931369 has 2 divisors, whose sum is σ = 196931370. Its totient is φ = 196931368.

The previous prime is 196931347. The next prime is 196931381. The reversal of 196931369 is 963139691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190992400 + 5938969 = 13820^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 196931369 - 2²⁴ = 180154153 is a prime.

It is a super-2 number, since 2×196931369² = 77563928192428322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196931309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98465684 + 98465685.

It is an arithmetic number, because the mean of its divisors is an integer number (98465685).

Almost surely, 2^196931369 is an apocalyptic number.

It is an amenable number.

196931369 is a deficient number, since it is larger than the sum of its proper divisors (1).

196931369 is an equidigital number, since it uses as much as digits as its factorization.

196931369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236196, while the sum is 47.

The square root of 196931369 is about 14033.2237565001. The cubic root of 196931369 is about 581.7972087455.

The spelling of 196931369 in words is "one hundred ninety-six million, nine hundred thirty-one thousand, three hundred sixty-nine".