33082981 has 2 divisors, whose sum is σ = 33082982. Its totient is φ = 33082980.

The previous prime is 33082967. The next prime is 33083021. The reversal of 33082981 is 18928033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27394756 + 5688225 = 5234^2 + 2385^2 .

It is an emirp because it is prime and its reverse (18928033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33082981 - 2⁵ = 33082949 is a prime.

It is a super-2 number, since 2×33082981² = 2188967263692722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33082381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16541490 + 16541491.

It is an arithmetic number, because the mean of its divisors is an integer number (16541491).

Almost surely, 2^33082981 is an apocalyptic number.

It is an amenable number.

33082981 is a deficient number, since it is larger than the sum of its proper divisors (1).

33082981 is an equidigital number, since it uses as much as digits as its factorization.

33082981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 33082981 is about 5751.7806807979. The cubic root of 33082981 is about 321.0220608991.

The spelling of 33082981 in words is "thirty-three million, eighty-two thousand, nine hundred eighty-one".