32125981 has 2 divisors, whose sum is σ = 32125982. Its totient is φ = 32125980.

The previous prime is 32125969. The next prime is 32125991. The reversal of 32125981 is 18952123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24651225 + 7474756 = 4965^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 32125981 - 2⁷ = 32125853 is a prime.

It is a super-2 number, since 2×32125981² = 2064157310424722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32125921) 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, 16062990 + 16062991.

It is an arithmetic number, because the mean of its divisors is an integer number (16062991).

Almost surely, 2^32125981 is an apocalyptic number.

It is an amenable number.

32125981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32125981 is an equidigital number, since it uses as much as digits as its factorization.

32125981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 32125981 is about 5667.9785638268. The cubic root of 32125981 is about 317.8962947835.

The spelling of 32125981 in words is "thirty-two million, one hundred twenty-five thousand, nine hundred eighty-one".