45448657 has 4 divisors (see below), whose sum is σ = 45711540. Its totient is φ = 45185776.

The previous prime is 45448639. The next prime is 45448661. The reversal of 45448657 is 75684454.

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 34152336 + 11296321 = 5844^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 45448657 - 2¹⁵ = 45415889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45448757) 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, 131182 + ... + 131527.

It is an arithmetic number, because the mean of its divisors is an integer number (11427885).

Almost surely, 2^45448657 is an apocalyptic number.

It is an amenable number.

45448657 is a deficient number, since it is larger than the sum of its proper divisors (262883).

45448657 is a wasteful number, since it uses less digits than its factorization.

45448657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262882.

The product of its digits is 537600, while the sum is 43.

The square root of 45448657 is about 6741.5619110114. The cubic root of 45448657 is about 356.8675161677.

The spelling of 45448657 in words is "forty-five million, four hundred forty-eight thousand, six hundred fifty-seven".