90135324 has 18 divisors (see below), whose sum is σ = 227842160. Its totient is φ = 30045096.

The previous prime is 90135319. The next prime is 90135337. The reversal of 90135324 is 42353109.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 1251844 + ... + 1251915.

Almost surely, 2^90135324 is an apocalyptic number.

It is an amenable number.

90135324 is an abundant number, since it is smaller than the sum of its proper divisors (137706836).

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

90135324 is a wasteful number, since it uses less digits than its factorization.

90135324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503769 (or 2503764 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 90135324 is about 9493.9625025592. The cubic root of 90135324 is about 448.3649701820.

The spelling of 90135324 in words is "ninety million, one hundred thirty-five thousand, three hundred twenty-four".