12135590 has 16 divisors (see below), whose sum is σ = 22377600. Its totient is φ = 4735680.

The previous prime is 12135587. The next prime is 12135611. The reversal of 12135590 is 9553121.

12135590 = 134² + 135² + ... + 338².

12135590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 14390 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (1398600).

Almost surely, 2^12135590 is an apocalyptic number.

12135590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12135590 is a deficient number, since it is larger than the sum of its proper divisors (10242010).

12135590 is a wasteful number, since it uses less digits than its factorization.

12135590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29647.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 12135590 is about 3483.6173727894. The cubic root of 12135590 is about 229.8019088349.

The spelling of 12135590 in words is "twelve million, one hundred thirty-five thousand, five hundred ninety".