98919131 has 2 divisors, whose sum is σ = 98919132. Its totient is φ = 98919130.

The previous prime is 98919089. The next prime is 98919133. The reversal of 98919131 is 13191989.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98919131 - 2¹⁴ = 98902747 is a prime.

It is a super-2 number, since 2×98919131² = 19569988955590322, which contains 22 as substring.

Together with 98919133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98919133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49459565 + 49459566.

It is an arithmetic number, because the mean of its divisors is an integer number (49459566).

Almost surely, 2^98919131 is an apocalyptic number.

98919131 is a deficient number, since it is larger than the sum of its proper divisors (1).

98919131 is an equidigital number, since it uses as much as digits as its factorization.

98919131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 41.

The square root of 98919131 is about 9945.8097206814. The cubic root of 98919131 is about 462.4805052411.

The spelling of 98919131 in words is "ninety-eight million, nine hundred nineteen thousand, one hundred thirty-one".