331001142 has 16 divisors (see below), whose sum is σ = 690785280. Its totient is φ = 105536552.

The previous prime is 331001141. The next prime is 331001161. The reversal of 331001142 is 241100133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331001141) 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 7 ways as a sum of consecutive naturals, for example, 1199142 + ... + 1199417.

It is an arithmetic number, because the mean of its divisors is an integer number (43174080).

Almost surely, 2^331001142 is an apocalyptic number.

331001142 is an abundant number, since it is smaller than the sum of its proper divisors (359784138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331001142 is a wasteful number, since it uses less digits than its factorization.

331001142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398587.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 331001142 is about 18193.4367836316. The cubic root of 331001142 is about 691.7404371954.

Adding to 331001142 its reverse (241100133), we get a palindrome (572101275).

The spelling of 331001142 in words is "three hundred thirty-one million, one thousand, one hundred forty-two".