98015231 has 2 divisors, whose sum is σ = 98015232. Its totient is φ = 98015230.

The previous prime is 98015219. The next prime is 98015233. The reversal of 98015231 is 13251089.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98015231 - 2²² = 93820927 is a prime.

It is a super-2 number, since 2×98015231² = 19213971015966722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 98015233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98015194 and 98015203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98015233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49007615 + 49007616.

It is an arithmetic number, because the mean of its divisors is an integer number (49007616).

Almost surely, 2^98015231 is an apocalyptic number.

98015231 is a deficient number, since it is larger than the sum of its proper divisors (1).

98015231 is an equidigital number, since it uses as much as digits as its factorization.

98015231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 98015231 is about 9900.2641883942. The cubic root of 98015231 is about 461.0675128513.

The spelling of 98015231 in words is "ninety-eight million, fifteen thousand, two hundred thirty-one".