12888955 has 4 divisors (see below), whose sum is σ = 15466752. Its totient is φ = 10311160.

The previous prime is 12888943. The next prime is 12888971. The reversal of 12888955 is 55988821.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12888955 - 2⁹ = 12888443 is a prime.

It is a super-2 number, since 2×12888955² = 332250321984050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288891 + ... + 1288900.

It is an arithmetic number, because the mean of its divisors is an integer number (3866688).

Almost surely, 2^12888955 is an apocalyptic number.

12888955 is a deficient number, since it is larger than the sum of its proper divisors (2577797).

12888955 is an equidigital number, since it uses as much as digits as its factorization.

12888955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577796.

The product of its digits is 230400, while the sum is 46.

The square root of 12888955 is about 3590.1190788050. The cubic root of 12888955 is about 234.4620560748.

The spelling of 12888955 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred fifty-five".