331201140 has 48 divisors (see below), whose sum is σ = 981916992. Its totient is φ = 83124736.

The previous prime is 331201133. The next prime is 331201163. The reversal of 331201140 is 41102133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161334 + ... + 163373.

It is an arithmetic number, because the mean of its divisors is an integer number (20456604).

Almost surely, 2^331201140 is an apocalyptic number.

331201140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331201140 is an abundant number, since it is smaller than the sum of its proper divisors (650715852).

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

331201140 is a wasteful number, since it uses less digits than its factorization.

331201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324736 (or 324734 counting only the distinct ones).

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

The square root of 331201140 is about 18198.9323862693. The cubic root of 331201140 is about 691.8797306215.

Adding to 331201140 its reverse (41102133), we get a palindrome (372303273).

The spelling of 331201140 in words is "three hundred thirty-one million, two hundred one thousand, one hundred forty".