99105210 has 24 divisors (see below), whose sum is σ = 257673780. Its totient is φ = 26428032.

The previous prime is 99105163. The next prime is 99105211. The reversal of 99105210 is 1250199.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98783721 + 321489 = 9939^2 + 567^2 .

It is not an unprimeable number, because it can be changed into a prime (99105211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550495 + ... + 550674.

Almost surely, 2^99105210 is an apocalyptic number.

99105210 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99105210 is an abundant number, since it is smaller than the sum of its proper divisors (158568570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99105210 is a wasteful number, since it uses less digits than its factorization.

99105210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101182 (or 1101179 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 99105210 is about 9955.1599685791. The cubic root of 99105210 is about 462.7703177495.

The spelling of 99105210 in words is "ninety-nine million, one hundred five thousand, two hundred ten".