331223148 has 24 divisors (see below), whose sum is σ = 858726960. Its totient is φ = 110407680.

The previous prime is 331223141. The next prime is 331223153. The reversal of 331223148 is 841322133.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (331223141) 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, 1533333 + ... + 1533548.

It is an arithmetic number, because the mean of its divisors is an integer number (35780290).

Almost surely, 2^331223148 is an apocalyptic number.

It is an amenable number.

331223148 is an abundant number, since it is smaller than the sum of its proper divisors (527503812).

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

331223148 is a wasteful number, since it uses less digits than its factorization.

331223148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066894 (or 3066886 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 331223148 is about 18199.5370270785. The cubic root of 331223148 is about 691.8950551982.

The spelling of 331223148 in words is "three hundred thirty-one million, two hundred twenty-three thousand, one hundred forty-eight".