90191150 has 24 divisors (see below), whose sum is σ = 191721360. Its totient is φ = 30922560.

The previous prime is 90191141. The next prime is 90191161. The reversal of 90191150 is 5119109.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128495 + ... + 129194.

It is an arithmetic number, because the mean of its divisors is an integer number (7988390).

Almost surely, 2^90191150 is an apocalyptic number.

90191150 is an abundant number, since it is smaller than the sum of its proper divisors (101530210).

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

90191150 is a wasteful number, since it uses less digits than its factorization.

90191150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257708 (or 257703 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 90191150 is about 9496.9021264831. The cubic root of 90191150 is about 448.4575171654.

The spelling of 90191150 in words is "ninety million, one hundred ninety-one thousand, one hundred fifty".