196953431 has 2 divisors, whose sum is σ = 196953432. Its totient is φ = 196953430.

The previous prime is 196953397. The next prime is 196953437. The reversal of 196953431 is 134359691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196953431 - 2¹⁰ = 196952407 is a prime.

It is a super-2 number, since 2×196953431² = 77581307965343522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196953437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98476715 + 98476716.

It is an arithmetic number, because the mean of its divisors is an integer number (98476716).

Almost surely, 2^196953431 is an apocalyptic number.

196953431 is a deficient number, since it is larger than the sum of its proper divisors (1).

196953431 is an equidigital number, since it uses as much as digits as its factorization.

196953431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 196953431 is about 14034.0097976309. The cubic root of 196953431 is about 581.8189339634.

The spelling of 196953431 in words is "one hundred ninety-six million, nine hundred fifty-three thousand, four hundred thirty-one".