90960181 has 16 divisors (see below), whose sum is σ = 102509568. Its totient is φ = 80150400.

The previous prime is 90960131. The next prime is 90960187. The reversal of 90960181 is 18106909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90960181 is a prime.

It is a super-2 number, since 2×90960181² = 16547509055105522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90960187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23236 + ... + 26866.

It is an arithmetic number, because the mean of its divisors is an integer number (6406848).

Almost surely, 2^90960181 is an apocalyptic number.

It is an amenable number.

90960181 is a deficient number, since it is larger than the sum of its proper divisors (11549387).

90960181 is a wasteful number, since it uses less digits than its factorization.

90960181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 90960181 is about 9537.3047031119. The cubic root of 90960181 is about 449.7285292674.

The spelling of 90960181 in words is "ninety million, nine hundred sixty thousand, one hundred eighty-one".