196143964531 has 2 divisors, whose sum is σ = 196143964532. Its totient is φ = 196143964530.

The previous prime is 196143964501. The next prime is 196143964571. The reversal of 196143964531 is 135469341691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196143964531 - 2¹⁹ = 196143440243 is a prime.

It is a super-2 number, since 2×196143964531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196143964501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98071982265 + 98071982266.

It is an arithmetic number, because the mean of its divisors is an integer number (98071982266).

Almost surely, 2^196143964531 is an apocalyptic number.

196143964531 is a deficient number, since it is larger than the sum of its proper divisors (1).

196143964531 is an equidigital number, since it uses as much as digits as its factorization.

196143964531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 52.

The spelling of 196143964531 in words is "one hundred ninety-six billion, one hundred forty-three million, nine hundred sixty-four thousand, five hundred thirty-one".