331144152 has 16 divisors (see below), whose sum is σ = 827860440. Its totient is φ = 110381376.

The previous prime is 331144147. The next prime is 331144157. The reversal of 331144152 is 251441133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (331144147) and next prime (331144157).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 13797673 = 331144152 / (3 + 3 + 1 + 1 + 4 + 4 + 1 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331144157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6898813 + ... + 6898860.

Almost surely, 2^331144152 is an apocalyptic number.

It is an amenable number.

331144152 is an abundant number, since it is smaller than the sum of its proper divisors (496716288).

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

331144152 is a wasteful number, since it uses less digits than its factorization.

331144152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13797682 (or 13797678 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 331144152 is about 18197.3666226737. The cubic root of 331144152 is about 691.8400456698.

Adding to 331144152 its reverse (251441133), we get a palindrome (582585285).

The spelling of 331144152 in words is "three hundred thirty-one million, one hundred forty-four thousand, one hundred fifty-two".