99811351 has 16 divisors (see below), whose sum is σ = 109634560. Its totient is φ = 90512640.

The previous prime is 99811339. The next prime is 99811357. The reversal of 99811351 is 15311899.

It is a happy number.

It is not a de Polignac number, because 99811351 - 2⁵ = 99811319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99811351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99811357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56260 + ... + 58006.

It is an arithmetic number, because the mean of its divisors is an integer number (6852160).

Almost surely, 2^99811351 is an apocalyptic number.

99811351 is a deficient number, since it is larger than the sum of its proper divisors (9823209).

99811351 is a wasteful number, since it uses less digits than its factorization.

99811351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894.

The product of its digits is 9720, while the sum is 37.

The square root of 99811351 is about 9990.5630972433. The cubic root of 99811351 is about 463.8668225970.

The spelling of 99811351 in words is "ninety-nine million, eight hundred eleven thousand, three hundred fifty-one".