12654881 has 2 divisors, whose sum is σ = 12654882. Its totient is φ = 12654880.

The previous prime is 12654841. The next prime is 12654923. The reversal of 12654881 is 18845621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10923025 + 1731856 = 3305^2 + 1316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12654881 is a prime.

It is a super-2 number, since 2×12654881² = 320292026248322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12654841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327440 + 6327441.

It is an arithmetic number, because the mean of its divisors is an integer number (6327441).

Almost surely, 2^12654881 is an apocalyptic number.

It is an amenable number.

12654881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12654881 is an equidigital number, since it uses as much as digits as its factorization.

12654881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 35.

The square root of 12654881 is about 3557.3699554587. The cubic root of 12654881 is about 233.0340350731.

The spelling of 12654881 in words is "twelve million, six hundred fifty-four thousand, eight hundred eighty-one".