332503981 has 2 divisors, whose sum is σ = 332503982. Its totient is φ = 332503980.

The previous prime is 332503979. The next prime is 332504017. The reversal of 332503981 is 189305233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242424900 + 90079081 = 15570^2 + 9491^2 .

It is a cyclic number.

It is not a de Polignac number, because 332503981 - 2¹ = 332503979 is a prime.

It is a super-2 number, since 2×332503981² = 221117794761696722, which contains 22 as substring.

Together with 332503979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332503961) 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, 166251990 + 166251991.

It is an arithmetic number, because the mean of its divisors is an integer number (166251991).

Almost surely, 2^332503981 is an apocalyptic number.

It is an amenable number.

332503981 is a deficient number, since it is larger than the sum of its proper divisors (1).

332503981 is an equidigital number, since it uses as much as digits as its factorization.

332503981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 332503981 is about 18234.6916891951. The cubic root of 332503981 is about 692.7857559882.

The spelling of 332503981 in words is "three hundred thirty-two million, five hundred three thousand, nine hundred eighty-one".