90156 has 24 divisors (see below), whose sum is σ = 229824. Its totient is φ = 27280.

The previous prime is 90149. The next prime is 90163. The reversal of 90156 is 65109.

It is an interprime number because it is at equal distance from previous prime (90149) and next prime (90163).

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 90156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210 + ... + 473.

It is an arithmetic number, because the mean of its divisors is an integer number (9576).

2⁹⁰¹⁵⁶ is an apocalyptic number.

It is an amenable number.

90156 is an abundant number, since it is smaller than the sum of its proper divisors (139668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114912).

90156 is a wasteful number, since it uses less digits than its factorization.

90156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 90156 is about 300.2598874309. The cubic root of 90156 is about 44.8399250806.

The spelling of 90156 in words is "ninety thousand, one hundred fifty-six".