3131357871 has 8 divisors (see below), whose sum is σ = 4394888320. Its totient is φ = 1977699672.

The previous prime is 3131357869. The next prime is 3131357893. The reversal of 3131357871 is 1787531313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3131357871 - 2¹ = 3131357869 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 (3131357861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27467995 + ... + 27468108.

It is an arithmetic number, because the mean of its divisors is an integer number (549361040).

Almost surely, 2^3131357871 is an apocalyptic number.

3131357871 is a deficient number, since it is larger than the sum of its proper divisors (1263530449).

3131357871 is a wasteful number, since it uses less digits than its factorization.

3131357871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54936125.

The product of its digits is 52920, while the sum is 39.

The square root of 3131357871 is about 55958.5370698699. The cubic root of 3131357871 is about 1462.9996922648. Note that the first 3 decimals are identical.

The spelling of 3131357871 in words is "three billion, one hundred thirty-one million, three hundred fifty-seven thousand, eight hundred seventy-one".