90031754 has 4 divisors (see below), whose sum is σ = 135047634. Its totient is φ = 45015876.

The previous prime is 90031751. The next prime is 90031759. The reversal of 90031754 is 45713009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77035729 + 12996025 = 8777^2 + 3605^2 .

It is not an unprimeable number, because it can be changed into a prime (90031751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22507937 + ... + 22507940.

Almost surely, 2^90031754 is an apocalyptic number.

90031754 is a deficient number, since it is larger than the sum of its proper divisors (45015880).

90031754 is a wasteful number, since it uses less digits than its factorization.

90031754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45015879.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 90031754 is about 9488.5064156589. The cubic root of 90031754 is about 448.1931730979.

The spelling of 90031754 in words is "ninety million, thirty-one thousand, seven hundred fifty-four".