196980631 has 2 divisors, whose sum is σ = 196980632. Its totient is φ = 196980630.

The previous prime is 196980601. The next prime is 196980643. The reversal of 196980631 is 136089691.

It is a strong prime.

It is an emirp because it is prime and its reverse (136089691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196980631 - 2¹³ = 196972439 is a prime.

It is a super-2 number, since 2×196980631² = 77602737978316322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196980601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98490315 + 98490316.

It is an arithmetic number, because the mean of its divisors is an integer number (98490316).

Almost surely, 2^196980631 is an apocalyptic number.

196980631 is the 8877-th centered pentagonal number.

196980631 is a deficient number, since it is larger than the sum of its proper divisors (1).

196980631 is an equidigital number, since it uses as much as digits as its factorization.

196980631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 196980631 is about 14034.9788386018. The cubic root of 196980631 is about 581.8457165155.

The spelling of 196980631 in words is "one hundred ninety-six million, nine hundred eighty thousand, six hundred thirty-one".