12882531 has 4 divisors (see below), whose sum is σ = 17176712. Its totient is φ = 8588352.

The previous prime is 12882517. The next prime is 12882533. The reversal of 12882531 is 13528821.

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

It is not a de Polignac number, because 12882531 - 2¹³ = 12874339 is a prime.

It is a super-2 number, since 2×12882531² = 331919209931922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12882533) 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, 2147086 + ... + 2147091.

It is an arithmetic number, because the mean of its divisors is an integer number (4294178).

Almost surely, 2^12882531 is an apocalyptic number.

12882531 is a deficient number, since it is larger than the sum of its proper divisors (4294181).

12882531 is an equidigital number, since it uses as much as digits as its factorization.

12882531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294180.

The product of its digits is 3840, while the sum is 30.

The square root of 12882531 is about 3589.2242894531. The cubic root of 12882531 is about 234.4230967604.

The spelling of 12882531 in words is "twelve million, eight hundred eighty-two thousand, five hundred thirty-one".