99271851 has 16 divisors (see below), whose sum is σ = 155361024. Its totient is φ = 55193184.

The previous prime is 99271847. The next prime is 99271871. The reversal of 99271851 is 15817299.

It is not a de Polignac number, because 99271851 - 2² = 99271847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99271871) 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, 63105 + ... + 64658.

It is an arithmetic number, because the mean of its divisors is an integer number (9710064).

Almost surely, 2^99271851 is an apocalyptic number.

99271851 is a deficient number, since it is larger than the sum of its proper divisors (56089173).

99271851 is a wasteful number, since it uses less digits than its factorization.

99271851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127810.

The product of its digits is 45360, while the sum is 42.

The square root of 99271851 is about 9963.5260324847. The cubic root of 99271851 is about 463.0295484068.

The spelling of 99271851 in words is "ninety-nine million, two hundred seventy-one thousand, eight hundred fifty-one".