12565090 has 16 divisors (see below), whose sum is σ = 22658688. Its totient is φ = 5016816.

The previous prime is 12565079. The next prime is 12565093. The reversal of 12565090 is 9056521.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12565093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8119 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (1416168).

Almost surely, 2^12565090 is an apocalyptic number.

12565090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12565090 is a deficient number, since it is larger than the sum of its proper divisors (10093598).

12565090 is a wasteful number, since it uses less digits than its factorization.

12565090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 12565090 is about 3544.7270698885. The cubic root of 12565090 is about 232.4815725172.

The spelling of 12565090 in words is "twelve million, five hundred sixty-five thousand, ninety".