5123139 has 16 divisors (see below), whose sum is σ = 7955712. Its totient is φ = 2871648.

The previous prime is 5123119. The next prime is 5123143. The reversal of 5123139 is 9313215.

It is a happy number.

It is not a de Polignac number, because 5123139 - 2⁷ = 5123011 is a prime.

It is an Ulam number.

5123139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5123119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189 + ... + 3414.

It is an arithmetic number, because the mean of its divisors is an integer number (497232).

Almost surely, 2^5123139 is an apocalyptic number.

5123139 is a deficient number, since it is larger than the sum of its proper divisors (2832573).

5123139 is a wasteful number, since it uses less digits than its factorization.

5123139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666.

The product of its digits is 810, while the sum is 24.

The square root of 5123139 is about 2263.4352210744. The cubic root of 5123139 is about 172.3899907698.

The spelling of 5123139 in words is "five million, one hundred twenty-three thousand, one hundred thirty-nine".