3138525831 has 8 divisors (see below), whose sum is σ = 4782515584. Its totient is φ = 1793443320.

The previous prime is 3138525829. The next prime is 3138525833. The reversal of 3138525831 is 1385258313.

It is an interprime number because it is at equal distance from previous prime (3138525829) and next prime (3138525833).

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

It is not a de Polignac number, because 3138525831 - 2¹ = 3138525829 is a prime.

It is a super-2 number, since 2×3138525831² = 19700688783708481122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3138525831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138525833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74726785 + ... + 74726826.

It is an arithmetic number, because the mean of its divisors is an integer number (597814448).

Almost surely, 2^3138525831 is an apocalyptic number.

3138525831 is a deficient number, since it is larger than the sum of its proper divisors (1643989753).

3138525831 is a wasteful number, since it uses less digits than its factorization.

3138525831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149453621.

The product of its digits is 86400, while the sum is 39.

The square root of 3138525831 is about 56022.5475232964. The cubic root of 3138525831 is about 1464.1151542233.

The spelling of 3138525831 in words is "three billion, one hundred thirty-eight million, five hundred twenty-five thousand, eight hundred thirty-one".