9135990 has 40 divisors (see below), whose sum is σ = 24567840. Its totient is φ = 2436048.

The previous prime is 9135977. The next prime is 9136009. The reversal of 9135990 is 995319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4830 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (614196).

Almost surely, 2^9135990 is an apocalyptic number.

9135990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9135990 is an abundant number, since it is smaller than the sum of its proper divisors (15431850).

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

9135990 is a wasteful number, since it uses less digits than its factorization.

9135990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298 (or 11289 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 9135990 is about 3022.5800237545. The cubic root of 9135990 is about 209.0508182859.

It can be divided in two parts, 913 and 5990, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 9135990 in words is "nine million, one hundred thirty-five thousand, nine hundred ninety".