45881117 has 2 divisors, whose sum is σ = 45881118. Its totient is φ = 45881116.

The previous prime is 45881083. The next prime is 45881119. The reversal of 45881117 is 71118854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45346756 + 534361 = 6734^2 + 731^2 .

It is a cyclic number.

It is not a de Polignac number, because 45881117 - 2⁶ = 45881053 is a prime.

Together with 45881119, 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 (45881119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22940558 + 22940559.

It is an arithmetic number, because the mean of its divisors is an integer number (22940559).

Almost surely, 2^45881117 is an apocalyptic number.

It is an amenable number.

45881117 is a deficient number, since it is larger than the sum of its proper divisors (1).

45881117 is an equidigital number, since it uses as much as digits as its factorization.

45881117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 35.

The square root of 45881117 is about 6773.5601422000. The cubic root of 45881117 is about 357.9958516211.

The spelling of 45881117 in words is "forty-five million, eight hundred eighty-one thousand, one hundred seventeen".