5123881 has 12 divisors (see below), whose sum is σ = 6075972. Its totient is φ = 4306848.

The previous prime is 5123879. The next prime is 5123887. The reversal of 5123881 is 1883215.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 2752281 = 1540^2 + 1659^2 .

It is not a de Polignac number, because 5123881 - 2¹ = 5123879 is a prime.

It is a super-2 number, since 2×5123881² = 52508313004322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5123887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1611 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (506331).

Almost surely, 2^5123881 is an apocalyptic number.

It is an amenable number.

5123881 is a deficient number, since it is larger than the sum of its proper divisors (952091).

5123881 is a wasteful number, since it uses less digits than its factorization.

5123881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040 (or 2033 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 5123881 is about 2263.5991252870. The cubic root of 5123881 is about 172.3983129591.

It can be divided in two parts, 51 and 23881, that added together give a palindrome (23932).

The spelling of 5123881 in words is "five million, one hundred twenty-three thousand, eight hundred eighty-one".