45471857 has 4 divisors (see below), whose sum is σ = 45889140. Its totient is φ = 45054576.

The previous prime is 45471841. The next prime is 45471859. The reversal of 45471857 is 75817454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24960016 + 20511841 = 4996^2 + 4529^2 .

It is a cyclic number.

It is not a de Polignac number, because 45471857 - 2⁴ = 45471841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45471859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208478 + ... + 208695.

It is an arithmetic number, because the mean of its divisors is an integer number (11472285).

Almost surely, 2^45471857 is an apocalyptic number.

It is an amenable number.

45471857 is a deficient number, since it is larger than the sum of its proper divisors (417283).

45471857 is a wasteful number, since it uses less digits than its factorization.

45471857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417282.

The product of its digits is 156800, while the sum is 41.

The square root of 45471857 is about 6743.2823609871. The cubic root of 45471857 is about 356.9282287648.

The spelling of 45471857 in words is "forty-five million, four hundred seventy-one thousand, eight hundred fifty-seven".