32041981 has 2 divisors, whose sum is σ = 32041982. Its totient is φ = 32041980.

The previous prime is 32041979. The next prime is 32042077. The reversal of 32041981 is 18914023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 793881 = 5590^2 + 891^2 .

It is a cyclic number.

It is not a de Polignac number, because 32041981 - 2¹ = 32041979 is a prime.

It is a super-2 number, since 2×32041981² = 2053377092808722, which contains 22 as substring.

Together with 32041979, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32041931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16020990 + 16020991.

It is an arithmetic number, because the mean of its divisors is an integer number (16020991).

Almost surely, 2^32041981 is an apocalyptic number.

It is an amenable number.

32041981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32041981 is an equidigital number, since it uses as much as digits as its factorization.

32041981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 32041981 is about 5660.5636645126. The cubic root of 32041981 is about 317.6189844825.

The spelling of 32041981 in words is "thirty-two million, forty-one thousand, nine hundred eighty-one".