98972131 has 2 divisors, whose sum is σ = 98972132. Its totient is φ = 98972130.

The previous prime is 98972123. The next prime is 98972141. The reversal of 98972131 is 13127989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98972131 - 2³ = 98972123 is a prime.

It is a super-2 number, since 2×98972131² = 19590965429362322, which contains 22 as substring.

It is equal to p_5705599 and since 98972131 and 5705599 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (98972141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49486065 + 49486066.

It is an arithmetic number, because the mean of its divisors is an integer number (49486066).

Almost surely, 2^98972131 is an apocalyptic number.

98972131 is a deficient number, since it is larger than the sum of its proper divisors (1).

98972131 is an equidigital number, since it uses as much as digits as its factorization.

98972131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 98972131 is about 9948.4738025488. The cubic root of 98972131 is about 462.5630881556.

The spelling of 98972131 in words is "ninety-eight million, nine hundred seventy-two thousand, one hundred thirty-one".