331001139 has 16 divisors (see below), whose sum is σ = 509379840. Its totient is φ = 187269600.

The previous prime is 331001137. The next prime is 331001141. The reversal of 331001139 is 931100133.

It is an interprime number because it is at equal distance from previous prime (331001137) and next prime (331001141).

It is not a de Polignac number, because 331001139 - 2¹ = 331001137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (331001131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75909 + ... + 80150.

It is an arithmetic number, because the mean of its divisors is an integer number (31836240).

Almost surely, 2^331001139 is an apocalyptic number.

331001139 is a deficient number, since it is larger than the sum of its proper divisors (178378701).

331001139 is a wasteful number, since it uses less digits than its factorization.

331001139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156170.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 331001139 is about 18193.4367011843. The cubic root of 331001139 is about 691.7404351056.

The spelling of 331001139 in words is "three hundred thirty-one million, one thousand, one hundred thirty-nine".