5156881 has 4 divisors (see below), whose sum is σ = 5323264. Its totient is φ = 4990500.

The previous prime is 5156849. The next prime is 5156891. The reversal of 5156881 is 1886515.

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.

It is a cyclic number.

It is not a de Polignac number, because 5156881 - 2⁵ = 5156849 is a prime.

It is a super-2 number, since 2×5156881² = 53186843296322, which contains 22 as substring.

It is a Duffinian number.

5156881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5156891) 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, 83145 + ... + 83206.

It is an arithmetic number, because the mean of its divisors is an integer number (1330816).

Almost surely, 2^5156881 is an apocalyptic number.

It is an amenable number.

5156881 is a deficient number, since it is larger than the sum of its proper divisors (166383).

5156881 is a wasteful number, since it uses less digits than its factorization.

5156881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166382.

The product of its digits is 9600, while the sum is 34.

The square root of 5156881 is about 2270.8767029498. The cubic root of 5156881 is about 172.7676276985.

It can be divided in two parts, 515 and 6881, that added together give a square (7396 = 86²).

The spelling of 5156881 in words is "five million, one hundred fifty-six thousand, eight hundred eighty-one".