32245181 has 2 divisors, whose sum is σ = 32245182. Its totient is φ = 32245180.

The previous prime is 32245139. The next prime is 32245183. The reversal of 32245181 is 18154223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 220900 = 5659^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 32245181 - 2⁶ = 32245117 is a prime.

It is a super-2 number, since 2×32245181² = 2079503395445522, which contains 22 as substring.

Together with 32245183, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32245181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32245183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16122590 + 16122591.

It is an arithmetic number, because the mean of its divisors is an integer number (16122591).

Almost surely, 2^32245181 is an apocalyptic number.

It is an amenable number.

32245181 is a deficient number, since it is larger than the sum of its proper divisors (1).

32245181 is an equidigital number, since it uses as much as digits as its factorization.

32245181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 32245181 is about 5678.4840406573. The cubic root of 32245181 is about 318.2889828537.

The spelling of 32245181 in words is "thirty-two million, two hundred forty-five thousand, one hundred eighty-one".