45749857 has 2 divisors, whose sum is σ = 45749858. Its totient is φ = 45749856.

The previous prime is 45749789. The next prime is 45749861. The reversal of 45749857 is 75894754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45037521 + 712336 = 6711^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 45749857 - 2¹¹ = 45747809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45749857.

It is not a weakly prime, because it can be changed into another prime (45749257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22874928 + 22874929.

It is an arithmetic number, because the mean of its divisors is an integer number (22874929).

Almost surely, 2^45749857 is an apocalyptic number.

It is an amenable number.

45749857 is a deficient number, since it is larger than the sum of its proper divisors (1).

45749857 is an equidigital number, since it uses as much as digits as its factorization.

45749857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 45749857 is about 6763.8640583619. The cubic root of 45749857 is about 357.6541321134.

The spelling of 45749857 in words is "forty-five million, seven hundred forty-nine thousand, eight hundred fifty-seven".