99228136 has 24 divisors (see below), whose sum is σ = 216429570. Its totient is φ = 42526176.

The previous prime is 99228121. The next prime is 99228161. The reversal of 99228136 is 63182299.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79032100 + 20196036 = 8890^2 + 4494^2 .

It is a super-3 number, since 3×99228136³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126175 + ... + 126958.

Almost surely, 2^99228136 is an apocalyptic number.

It is an amenable number.

99228136 is an abundant number, since it is smaller than the sum of its proper divisors (117201434).

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

99228136 is a wasteful number, since it uses less digits than its factorization.

99228136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253153 (or 253142 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 99228136 is about 9961.3320394413. The cubic root of 99228136 is about 462.9615724117.

The spelling of 99228136 in words is "ninety-nine million, two hundred twenty-eight thousand, one hundred thirty-six".