90191160 has 192 divisors, whose sum is σ = 310845600. Its totient is φ = 22643712.

The previous prime is 90191141. The next prime is 90191161. The reversal of 90191160 is 6119109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90191161) 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 47 ways as a sum of consecutive naturals, for example, 553239 + ... + 553401.

Almost surely, 2^90191160 is an apocalyptic number.

90191160 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90191160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155422800).

90191160 is an abundant number, since it is smaller than the sum of its proper divisors (220654440).

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

90191160 is a wasteful number, since it uses less digits than its factorization.

90191160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 90191160 is about 9496.9026529706. The cubic root of 90191160 is about 448.4575337398.

The spelling of 90191160 in words is "ninety million, one hundred ninety-one thousand, one hundred sixty".