12137730 has 32 divisors (see below), whose sum is σ = 31779648. Its totient is φ = 2942400.

The previous prime is 12137701. The next prime is 12137743. The reversal of 12137730 is 3773121.

It is a self number, because there is not a number n which added to its sum of digits gives 12137730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18061 + ... + 18720.

It is an arithmetic number, because the mean of its divisors is an integer number (993114).

Almost surely, 2^12137730 is an apocalyptic number.

12137730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12137730 is an abundant number, since it is smaller than the sum of its proper divisors (19641918).

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

12137730 is a wasteful number, since it uses less digits than its factorization.

12137730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36802.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 12137730 is about 3483.9245112373. The cubic root of 12137730 is about 229.8154158607.

The spelling of 12137730 in words is "twelve million, one hundred thirty-seven thousand, seven hundred thirty".