331407227 has 4 divisors (see below), whose sum is σ = 331445376. Its totient is φ = 331369080.

The previous prime is 331407211. The next prime is 331407229. The reversal of 331407227 is 722704133.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 331407227 - 2⁴ = 331407211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331407227.

It is not an unprimeable number, because it can be changed into a prime (331407229) 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, 998 + ... + 25764.

It is an arithmetic number, because the mean of its divisors is an integer number (82861344).

Almost surely, 2^331407227 is an apocalyptic number.

331407227 is a deficient number, since it is larger than the sum of its proper divisors (38149).

331407227 is a wasteful number, since it uses less digits than its factorization.

331407227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38148.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 331407227 is about 18204.5935686573. The cubic root of 331407227 is about 692.0232062284.

The spelling of 331407227 in words is "three hundred thirty-one million, four hundred seven thousand, two hundred twenty-seven".