90145154 has 16 divisors (see below), whose sum is σ = 150650496. Its totient is φ = 40102800.

The previous prime is 90145151. The next prime is 90145171. The reversal of 90145154 is 45154109.

It is a super-2 number, since 2×90145154² = 16252297579367432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90145151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42557 + ... + 44624.

It is an arithmetic number, because the mean of its divisors is an integer number (9415656).

Almost surely, 2^90145154 is an apocalyptic number.

90145154 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

90145154 is a deficient number, since it is larger than the sum of its proper divisors (60505342).

90145154 is a wasteful number, since it uses less digits than its factorization.

90145154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87241.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 90145154 is about 9494.4801858764. The cubic root of 90145154 is about 448.3812688880.

The spelling of 90145154 in words is "ninety million, one hundred forty-five thousand, one hundred fifty-four".