12911151 has 8 divisors (see below), whose sum is σ = 18779904. Its totient is φ = 7824920.

The previous prime is 12911123. The next prime is 12911161. The reversal of 12911151 is 15111921.

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 12911151 - 2¹⁰ = 12910127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911161) 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, 195591 + ... + 195656.

It is an arithmetic number, because the mean of its divisors is an integer number (2347488).

Almost surely, 2^12911151 is an apocalyptic number.

12911151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12911151 is a deficient number, since it is larger than the sum of its proper divisors (5868753).

12911151 is a wasteful number, since it uses less digits than its factorization.

12911151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391261.

The product of its digits is 90, while the sum is 21.

The square root of 12911151 is about 3593.2090114548. The cubic root of 12911151 is about 234.5965675052.

It can be divided in two parts, 1291 and 1151, that added together give a palindrome (2442).

The spelling of 12911151 in words is "twelve million, nine hundred eleven thousand, one hundred fifty-one".