3138959 has 4 divisors (see below), whose sum is σ = 3146400. Its totient is φ = 3131520.

The previous prime is 3138953. The next prime is 3138991. The reversal of 3138959 is 9598313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9598313 = 31 ⋅309623.

It is a cyclic number.

It is not a de Polignac number, because 3138959 - 2⁴ = 3138943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3047 + ... + 3944.

It is an arithmetic number, because the mean of its divisors is an integer number (786600).

Almost surely, 2^3138959 is an apocalyptic number.

3138959 is a deficient number, since it is larger than the sum of its proper divisors (7441).

3138959 is an equidigital number, since it uses as much as digits as its factorization.

3138959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440.

The product of its digits is 29160, while the sum is 38.

The square root of 3138959 is about 1771.7107551742. The cubic root of 3138959 is about 146.4182508575.

The spelling of 3138959 in words is "three million, one hundred thirty-eight thousand, nine hundred fifty-nine".