12540955 has 8 divisors (see below), whose sum is σ = 17199072. Its totient is φ = 8599488.

The previous prime is 12540953. The next prime is 12540961. The reversal of 12540955 is 55904521.

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 12540955 - 2¹ = 12540953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12540953) 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, 179122 + ... + 179191.

It is an arithmetic number, because the mean of its divisors is an integer number (2149884).

Almost surely, 2^12540955 is an apocalyptic number.

12540955 is a deficient number, since it is larger than the sum of its proper divisors (4658117).

12540955 is an equidigital number, since it uses as much as digits as its factorization.

12540955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358325.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 12540955 is about 3541.3210811786. The cubic root of 12540955 is about 232.3326270637.

The spelling of 12540955 in words is "twelve million, five hundred forty thousand, nine hundred fifty-five".