5138923 has 2 divisors, whose sum is σ = 5138924. Its totient is φ = 5138922.

The previous prime is 5138891. The next prime is 5138929. The reversal of 5138923 is 3298315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5138923 - 2⁵ = 5138891 is a prime.

It is not a weakly prime, because it can be changed into another prime (5138929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569461 + 2569462.

It is an arithmetic number, because the mean of its divisors is an integer number (2569462).

Almost surely, 2^5138923 is an apocalyptic number.

5138923 is a deficient number, since it is larger than the sum of its proper divisors (1).

5138923 is an equidigital number, since it uses as much as digits as its factorization.

5138923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 5138923 is about 2266.9192751397. The cubic root of 5138923 is about 172.5668493966.

The spelling of 5138923 in words is "five million, one hundred thirty-eight thousand, nine hundred twenty-three".