331135042 has 12 divisors (see below), whose sum is σ = 577797030. Its totient is φ = 141914976.

The previous prime is 331135037. The next prime is 331135109. The reversal of 331135042 is 240531133.

It can be written as a sum of positive squares in only one way, i.e., 315382081 + 15752961 = 17759^2 + 3969^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1689367 + ... + 1689562.

Almost surely, 2^331135042 is an apocalyptic number.

331135042 is a deficient number, since it is larger than the sum of its proper divisors (246661988).

331135042 is a wasteful number, since it uses less digits than its factorization.

331135042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378945 (or 3378938 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 331135042 is about 18197.1163100091. The cubic root of 331135042 is about 691.8337012821.

Adding to 331135042 its reverse (240531133), we get a palindrome (571666175).

The spelling of 331135042 in words is "three hundred thirty-one million, one hundred thirty-five thousand, forty-two".