331100140 has 24 divisors (see below), whose sum is σ = 794640672. Its totient is φ = 113520000.

The previous prime is 331100117. The next prime is 331100149. The reversal of 331100140 is 41001133.

It is a self number, because there is not a number n which added to its sum of digits gives 331100140.

It is not an unprimeable number, because it can be changed into a prime (331100149) 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, 1182361 + ... + 1182640.

It is an arithmetic number, because the mean of its divisors is an integer number (33110028).

Almost surely, 2^331100140 is an apocalyptic number.

It is an amenable number.

331100140 is an abundant number, since it is smaller than the sum of its proper divisors (463540532).

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

331100140 is a wasteful number, since it uses less digits than its factorization.

331100140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365017 (or 2365015 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 331100140 is about 18196.1572866361. The cubic root of 331100140 is about 691.8093937487.

Adding to 331100140 its reverse (41001133), we get a palindrome (372101273).

The spelling of 331100140 in words is "three hundred thirty-one million, one hundred thousand, one hundred forty".