45257745 has 16 divisors (see below), whose sum is σ = 77982912. Its totient is φ = 22280640.

The previous prime is 45257741. The next prime is 45257747. The reversal of 45257745 is 54775254.

It is not a de Polignac number, because 45257745 - 2² = 45257741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (45257741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115851 + ... + 116240.

It is an arithmetic number, because the mean of its divisors is an integer number (4873932).

Almost surely, 2^45257745 is an apocalyptic number.

It is an amenable number.

45257745 is a deficient number, since it is larger than the sum of its proper divisors (32725167).

45257745 is a wasteful number, since it uses less digits than its factorization.

45257745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232112.

The product of its digits is 196000, while the sum is 39.

The square root of 45257745 is about 6727.3876802218. The cubic root of 45257745 is about 356.3671279992.

The spelling of 45257745 in words is "forty-five million, two hundred fifty-seven thousand, seven hundred forty-five".