99331513 has 2 divisors, whose sum is σ = 99331514. Its totient is φ = 99331512.

The previous prime is 99331511. The next prime is 99331541. The reversal of 99331513 is 31513399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 13454224 = 9267^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 99331513 - 2¹ = 99331511 is a prime.

Together with 99331511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99331511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49665756 + 49665757.

It is an arithmetic number, because the mean of its divisors is an integer number (49665757).

Almost surely, 2^99331513 is an apocalyptic number.

It is an amenable number.

99331513 is a deficient number, since it is larger than the sum of its proper divisors (1).

99331513 is an equidigital number, since it uses as much as digits as its factorization.

99331513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10935, while the sum is 34.

The square root of 99331513 is about 9966.5196031513. The cubic root of 99331513 is about 463.1222894885.

The spelling of 99331513 in words is "ninety-nine million, three hundred thirty-one thousand, five hundred thirteen".