90134574 has 8 divisors (see below), whose sum is σ = 180269160. Its totient is φ = 30044856.

The previous prime is 90134573. The next prime is 90134591. The reversal of 90134574 is 47543109.

It is a sphenic number, since it is the product of 3 distinct primes.

90134574 is an admirable number.

It is a super-2 number, since 2×90134574² = 16248482860322952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90134573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7511209 + ... + 7511220.

It is an arithmetic number, because the mean of its divisors is an integer number (22533645).

Almost surely, 2^90134574 is an apocalyptic number.

90134574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90134574 is a wasteful number, since it uses less digits than its factorization.

90134574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022434.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 90134574 is about 9493.9230036903. The cubic root of 90134574 is about 448.3637265902.

The spelling of 90134574 in words is "ninety million, one hundred thirty-four thousand, five hundred seventy-four".