3138317247 has 16 divisors (see below), whose sum is σ = 4546186848. Its totient is φ = 1914178560.

The previous prime is 3138317213. The next prime is 3138317257. The reversal of 3138317247 is 7427138313.

It is not a de Polignac number, because 3138317247 - 2²³ = 3129928639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138317257) 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, 351654 + ... + 360467.

It is an arithmetic number, because the mean of its divisors is an integer number (284136678).

Almost surely, 2^3138317247 is an apocalyptic number.

3138317247 is a deficient number, since it is larger than the sum of its proper divisors (1407869601).

3138317247 is a wasteful number, since it uses less digits than its factorization.

3138317247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712250.

The product of its digits is 84672, while the sum is 39.

The square root of 3138317247 is about 56020.6858847694. The cubic root of 3138317247 is about 1464.0827188510.

The spelling of 3138317247 in words is "three billion, one hundred thirty-eight million, three hundred seventeen thousand, two hundred forty-seven".