332261491 has 2 divisors, whose sum is σ = 332261492. Its totient is φ = 332261490.

The previous prime is 332261483. The next prime is 332261513. The reversal of 332261491 is 194162233.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 332261491 - 2³ = 332261483 is a prime.

It is a super-2 number, since 2×332261491² = 220795396803086162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (332261791) 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, 166130745 + 166130746.

It is an arithmetic number, because the mean of its divisors is an integer number (166130746).

Almost surely, 2^332261491 is an apocalyptic number.

332261491 is a deficient number, since it is larger than the sum of its proper divisors (1).

332261491 is an equidigital number, since it uses as much as digits as its factorization.

332261491 is an odious number, because the sum of its binary digits is odd.

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

The square root of 332261491 is about 18228.0413374559. The cubic root of 332261491 is about 692.6173023931.

The spelling of 332261491 in words is "three hundred thirty-two million, two hundred sixty-one thousand, four hundred ninety-one".