5122639 has 2 divisors, whose sum is σ = 5122640. Its totient is φ = 5122638.

The previous prime is 5122631. The next prime is 5122643. The reversal of 5122639 is 9362215.

5122639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5122639 - 2³ = 5122631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5122631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561319 + 2561320.

It is an arithmetic number, because the mean of its divisors is an integer number (2561320).

Almost surely, 2^5122639 is an apocalyptic number.

5122639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5122639 is an equidigital number, since it uses as much as digits as its factorization.

5122639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 5122639 is about 2263.3247667977. The cubic root of 5122639 is about 172.3843823723.

The spelling of 5122639 in words is "five million, one hundred twenty-two thousand, six hundred thirty-nine".