331045061 has 4 divisors (see below), whose sum is σ = 332529792. Its totient is φ = 329560332.

The previous prime is 331045051. The next prime is 331045067. The reversal of 331045061 is 160540133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331045061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331045067) 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, 742031 + ... + 742476.

It is an arithmetic number, because the mean of its divisors is an integer number (83132448).

Almost surely, 2^331045061 is an apocalyptic number.

It is an amenable number.

331045061 is a deficient number, since it is larger than the sum of its proper divisors (1484731).

331045061 is a wasteful number, since it uses less digits than its factorization.

331045061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484730.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 331045061 is about 18194.6437447948. The cubic root of 331045061 is about 691.7710304481.

Adding to 331045061 its reverse (160540133), we get a palindrome (491585194).

The spelling of 331045061 in words is "three hundred thirty-one million, forty-five thousand, sixty-one".