90133522 has 4 divisors (see below), whose sum is σ = 135200286. Its totient is φ = 45066760.

The previous prime is 90133513. The next prime is 90133531. The reversal of 90133522 is 22533109.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (90133513) and next prime (90133531).

It can be written as a sum of positive squares in only one way, i.e., 75533481 + 14600041 = 8691^2 + 3821^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22533379 + ... + 22533382.

Almost surely, 2^90133522 is an apocalyptic number.

90133522 is a deficient number, since it is larger than the sum of its proper divisors (45066764).

90133522 is a wasteful number, since it uses less digits than its factorization.

90133522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45066763.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 90133522 is about 9493.8675996666. The cubic root of 90133522 is about 448.3619822337.

The spelling of 90133522 in words is "ninety million, one hundred thirty-three thousand, five hundred twenty-two".