5138279 has 2 divisors, whose sum is σ = 5138280. Its totient is φ = 5138278.

The previous prime is 5138257. The next prime is 5138291. The reversal of 5138279 is 9728315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5138279 - 2¹² = 5134183 is a prime.

It is a super-2 number, since 2×5138279² = 52803822163682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5138179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569139 + 2569140.

It is an arithmetic number, because the mean of its divisors is an integer number (2569140).

Almost surely, 2^5138279 is an apocalyptic number.

5138279 is a deficient number, since it is larger than the sum of its proper divisors (1).

5138279 is an equidigital number, since it uses as much as digits as its factorization.

5138279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 5138279 is about 2266.7772276957. Note that the first 3 decimals coincide. The cubic root of 5138279 is about 172.5596405130.

The spelling of 5138279 in words is "five million, one hundred thirty-eight thousand, two hundred seventy-nine".