45771917 has 2 divisors, whose sum is σ = 45771918. Its totient is φ = 45771916.

The previous prime is 45771883. The next prime is 45771919. The reversal of 45771917 is 71917754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32478601 + 13293316 = 5699^2 + 3646^2 .

It is a cyclic number.

It is not a de Polignac number, because 45771917 - 2⁶ = 45771853 is a prime.

Together with 45771919, 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 (45771919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22885958 + 22885959.

It is an arithmetic number, because the mean of its divisors is an integer number (22885959).

Almost surely, 2^45771917 is an apocalyptic number.

It is an amenable number.

45771917 is a deficient number, since it is larger than the sum of its proper divisors (1).

45771917 is an equidigital number, since it uses as much as digits as its factorization.

45771917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 41.

The square root of 45771917 is about 6765.4945865029. The cubic root of 45771917 is about 357.7116083030.

The spelling of 45771917 in words is "forty-five million, seven hundred seventy-one thousand, nine hundred seventeen".