90136146 has 16 divisors (see below), whose sum is σ = 183674304. Its totient is φ = 29478384.

The previous prime is 90136139. The next prime is 90136153. The reversal of 90136146 is 64163109.

It is an interprime number because it is at equal distance from previous prime (90136139) and next prime (90136153).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141406 + ... + 142041.

It is an arithmetic number, because the mean of its divisors is an integer number (11479644).

Almost surely, 2^90136146 is an apocalyptic number.

90136146 is an abundant number, since it is smaller than the sum of its proper divisors (93538158).

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

90136146 is a wasteful number, since it uses less digits than its factorization.

90136146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283505.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 90136146 is about 9494.0057931307. The cubic root of 90136146 is about 448.3663331508.

The spelling of 90136146 in words is "ninety million, one hundred thirty-six thousand, one hundred forty-six".