90136325 has 12 divisors (see below), whose sum is σ = 112211940. Its totient is φ = 71823360.

The previous prime is 90136309. The next prime is 90136331. The reversal of 90136325 is 52363109.

It can be written as a sum of positive squares in 6 ways, for example, as 1437601 + 88698724 = 1199^2 + 9418^2 .

It is not a de Polignac number, because 90136325 - 2⁴ = 90136309 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (9350995).

Almost surely, 2^90136325 is an apocalyptic number.

It is an amenable number.

90136325 is a deficient number, since it is larger than the sum of its proper divisors (22075615).

90136325 is a wasteful number, since it uses less digits than its factorization.

90136325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14296 (or 14291 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 90136325 is about 9494.0152201268. The cubic root of 90136325 is about 448.3666299519.

The spelling of 90136325 in words is "ninety million, one hundred thirty-six thousand, three hundred twenty-five".