12651090 has 16 divisors (see below), whose sum is σ = 30362688. Its totient is φ = 3373616.

The previous prime is 12651059. The next prime is 12651091. The reversal of 12651090 is 9015621.

It is a self number, because there is not a number n which added to its sum of digits gives 12651090.

It is not an unprimeable number, because it can be changed into a prime (12651091) 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, 210822 + ... + 210881.

It is an arithmetic number, because the mean of its divisors is an integer number (1897668).

Almost surely, 2^12651090 is an apocalyptic number.

12651090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12651090 is an abundant number, since it is smaller than the sum of its proper divisors (17711598).

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

12651090 is a wasteful number, since it uses less digits than its factorization.

12651090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421713.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 12651090 is about 3556.8370780793. The cubic root of 12651090 is about 233.0107628864.

The spelling of 12651090 in words is "twelve million, six hundred fifty-one thousand, ninety".