12870081 has 24 divisors (see below), whose sum is σ = 21350784. Its totient is φ = 7318080.

The previous prime is 12870079. The next prime is 12870089. The reversal of 12870081 is 18007821.

It is not a de Polignac number, because 12870081 - 2¹ = 12870079 is a prime.

It is a super-2 number, since 2×12870081² = 331277969893122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12870089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17340 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (889616).

Almost surely, 2^12870081 is an apocalyptic number.

It is an amenable number.

12870081 is a deficient number, since it is larger than the sum of its proper divisors (8480703).

12870081 is a wasteful number, since it uses less digits than its factorization.

12870081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 12870081 is about 3587.4895121798. The cubic root of 12870081 is about 234.3475549730.

The spelling of 12870081 in words is "twelve million, eight hundred seventy thousand, eighty-one".