332564381 has 2 divisors, whose sum is σ = 332564382. Its totient is φ = 332564380.

The previous prime is 332564377. The next prime is 332564423. The reversal of 332564381 is 183465233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230736100 + 101828281 = 15190^2 + 10091^2 .

It is a cyclic number.

It is not a de Polignac number, because 332564381 - 2² = 332564377 is a prime.

It is a super-2 number, since 2×332564381² = 221198135019826322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332561381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166282190 + 166282191.

It is an arithmetic number, because the mean of its divisors is an integer number (166282191).

Almost surely, 2^332564381 is an apocalyptic number.

It is an amenable number.

332564381 is a deficient number, since it is larger than the sum of its proper divisors (1).

332564381 is an equidigital number, since it uses as much as digits as its factorization.

332564381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 332564381 is about 18236.3477977363. The cubic root of 332564381 is about 692.8277020787.

The spelling of 332564381 in words is "three hundred thirty-two million, five hundred sixty-four thousand, three hundred eighty-one".