331368061 has 4 divisors (see below), whose sum is σ = 345775392. Its totient is φ = 316960732.

The previous prime is 331368053. The next prime is 331368071. The reversal of 331368061 is 160863133.

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 not a de Polignac number, because 331368061 - 2³ = 331368053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331368071) 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, 7203631 + ... + 7203676.

It is an arithmetic number, because the mean of its divisors is an integer number (86443848).

Almost surely, 2^331368061 is an apocalyptic number.

It is an amenable number.

331368061 is a deficient number, since it is larger than the sum of its proper divisors (14407331).

331368061 is a wasteful number, since it uses less digits than its factorization.

331368061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14407330.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 331368061 is about 18203.5178193667. The cubic root of 331368061 is about 691.9959438489.

The spelling of 331368061 in words is "three hundred thirty-one million, three hundred sixty-eight thousand, sixty-one".