90221153 has 16 divisors (see below), whose sum is σ = 101502720. Its totient is φ = 79488000.

The previous prime is 90221137. The next prime is 90221171. The reversal of 90221153 is 35112209.

It is a cyclic number.

It is not a de Polignac number, because 90221153 - 2⁴ = 90221137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55553 + ... + 57153.

It is an arithmetic number, because the mean of its divisors is an integer number (6343920).

Almost surely, 2^90221153 is an apocalyptic number.

It is an amenable number.

90221153 is a deficient number, since it is larger than the sum of its proper divisors (11281567).

90221153 is a wasteful number, since it uses less digits than its factorization.

90221153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 90221153 is about 9498.4816155004. The cubic root of 90221153 is about 448.5072396315.

The spelling of 90221153 in words is "ninety million, two hundred twenty-one thousand, one hundred fifty-three".