12888957 has 4 divisors (see below), whose sum is σ = 17185280. Its totient is φ = 8592636.

The previous prime is 12888943. The next prime is 12888971. The reversal of 12888957 is 75988821.

Added to its reverse (75988821) it gives a triangular number (88877778 = T₁₃₃₃₂).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75988821 = 3 ⋅25329607.

It is an interprime number because it is at equal distance from previous prime (12888943) and next prime (12888971).

It is not a de Polignac number, because 12888957 - 2¹⁰ = 12887933 is a prime.

It is a super-2 number, since 2×12888957² = 332250425095698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148157 + ... + 2148162.

It is an arithmetic number, because the mean of its divisors is an integer number (4296320).

Almost surely, 2^12888957 is an apocalyptic number.

It is an amenable number.

12888957 is a deficient number, since it is larger than the sum of its proper divisors (4296323).

12888957 is an equidigital number, since it uses as much as digits as its factorization.

12888957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296322.

The product of its digits is 322560, while the sum is 48.

The square root of 12888957 is about 3590.1193573473. The cubic root of 12888957 is about 234.4620682021.

Adding to 12888957 its reverse (75988821), we get a triangular number (88877778 = T₁₃₃₃₂).

The spelling of 12888957 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred fifty-seven".