90147204 has 36 divisors (see below), whose sum is σ = 260425984. Its totient is φ = 25756272.

The previous prime is 90147193. The next prime is 90147217. The reversal of 90147204 is 40274109.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178612 + ... + 179115.

Almost surely, 2^90147204 is an apocalyptic number.

It is an amenable number.

90147204 is an abundant number, since it is smaller than the sum of its proper divisors (170278780).

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

90147204 is a wasteful number, since it uses less digits than its factorization.

90147204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357744 (or 357739 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 90147204 is about 9494.5881427264. The cubic root of 90147204 is about 448.3846677568.

The spelling of 90147204 in words is "ninety million, one hundred forty-seven thousand, two hundred four".