32162981 has 2 divisors, whose sum is σ = 32162982. Its totient is φ = 32162980.

The previous prime is 32162971. The next prime is 32163037. The reversal of 32162981 is 18926123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 70756 = 5665^2 + 266^2 .

It is a cyclic number.

It is not a de Polignac number, because 32162981 - 2⁶ = 32162917 is a prime.

It is a super-2 number, since 2×32162981² = 2068914693612722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32162951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16081490 + 16081491.

It is an arithmetic number, because the mean of its divisors is an integer number (16081491).

Almost surely, 2^32162981 is an apocalyptic number.

It is an amenable number.

32162981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32162981 is an equidigital number, since it uses as much as digits as its factorization.

32162981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 32162981 is about 5671.2415748229. The cubic root of 32162981 is about 318.0182900230.

The spelling of 32162981 in words is "thirty-two million, one hundred sixty-two thousand, nine hundred eighty-one".