90157322 has 8 divisors (see below), whose sum is σ = 135365700. Its totient is φ = 45035424.

The previous prime is 90157321. The next prime is 90157343. The reversal of 90157322 is 22375109.

It can be written as a sum of positive squares in 2 ways, for example, as 81342361 + 8814961 = 9019^2 + 2969^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90157321) 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, 18947 + ... + 23222.

Almost surely, 2^90157322 is an apocalyptic number.

90157322 is a deficient number, since it is larger than the sum of its proper divisors (45208378).

90157322 is a wasteful number, since it uses less digits than its factorization.

90157322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43240.

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

The square root of 90157322 is about 9495.1209576287. The cubic root of 90157322 is about 448.4014424917.

The spelling of 90157322 in words is "ninety million, one hundred fifty-seven thousand, three hundred twenty-two".