12137755 has 8 divisors (see below), whose sum is σ = 16646112. Its totient is φ = 8323008.

The previous prime is 12137753. The next prime is 12137803. The reversal of 12137755 is 55773121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12137755 - 2¹ = 12137753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12137753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173362 + ... + 173431.

It is an arithmetic number, because the mean of its divisors is an integer number (2080764).

Almost surely, 2^12137755 is an apocalyptic number.

12137755 is a deficient number, since it is larger than the sum of its proper divisors (4508357).

12137755 is an equidigital number, since it uses as much as digits as its factorization.

12137755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346805.

The product of its digits is 7350, while the sum is 31.

The square root of 12137755 is about 3483.9280991433. The cubic root of 12137755 is about 229.8155736436.

The spelling of 12137755 in words is "twelve million, one hundred thirty-seven thousand, seven hundred fifty-five".