331914227 has 2 divisors, whose sum is σ = 331914228. Its totient is φ = 331914226.

The previous prime is 331914217. The next prime is 331914257. The reversal of 331914227 is 722419133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331914227 - 2²⁰ = 330865651 is a prime.

It is a super-2 number, since 2×331914227² = 220334108170015058, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 331914193 and 331914202.

It is not a weakly prime, because it can be changed into another prime (331914217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165957113 + 165957114.

It is an arithmetic number, because the mean of its divisors is an integer number (165957114).

Almost surely, 2^331914227 is an apocalyptic number.

331914227 is a deficient number, since it is larger than the sum of its proper divisors (1).

331914227 is an equidigital number, since it uses as much as digits as its factorization.

331914227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 331914227 is about 18218.5133037798. The cubic root of 331914227 is about 692.3759213285.

The spelling of 331914227 in words is "three hundred thirty-one million, nine hundred fourteen thousand, two hundred twenty-seven".