196465531 has 2 divisors, whose sum is σ = 196465532. Its totient is φ = 196465530.

The previous prime is 196465487. The next prime is 196465537. The reversal of 196465531 is 135564691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196465531 - 2⁷ = 196465403 is a prime.

It is a super-2 number, since 2×196465531² = 77197409742223922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196465537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98232765 + 98232766.

It is an arithmetic number, because the mean of its divisors is an integer number (98232766).

Almost surely, 2^196465531 is an apocalyptic number.

196465531 is a deficient number, since it is larger than the sum of its proper divisors (1).

196465531 is an equidigital number, since it uses as much as digits as its factorization.

196465531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 196465531 is about 14016.6162464412. The cubic root of 196465531 is about 581.3381025584.

The spelling of 196465531 in words is "one hundred ninety-six million, four hundred sixty-five thousand, five hundred thirty-one".