90225157 has 8 divisors (see below), whose sum is σ = 98504640. Its totient is φ = 81958560.

The previous prime is 90225127. The next prime is 90225169. The reversal of 90225157 is 75152209.

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

It is a cyclic number.

It is not a de Polignac number, because 90225157 - 2²³ = 81836549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90225127) 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 7 ways as a sum of consecutive naturals, for example, 16944 + ... + 21622.

It is an arithmetic number, because the mean of its divisors is an integer number (12313080).

Almost surely, 2^90225157 is an apocalyptic number.

It is an amenable number.

90225157 is a deficient number, since it is larger than the sum of its proper divisors (8279483).

90225157 is a wasteful number, since it uses less digits than its factorization.

90225157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 90225157 is about 9498.6923836916. The cubic root of 90225157 is about 448.5138744259.

The spelling of 90225157 in words is "ninety million, two hundred twenty-five thousand, one hundred fifty-seven".