45057147 has 4 divisors (see below), whose sum is σ = 60076200. Its totient is φ = 30038096.

The previous prime is 45057139. The next prime is 45057169. The reversal of 45057147 is 74175054.

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

It is a cyclic number.

It is not a de Polignac number, because 45057147 - 2³ = 45057139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45057107) 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, 7509522 + ... + 7509527.

It is an arithmetic number, because the mean of its divisors is an integer number (15019050).

Almost surely, 2^45057147 is an apocalyptic number.

45057147 is a deficient number, since it is larger than the sum of its proper divisors (15019053).

45057147 is a wasteful number, since it uses less digits than its factorization.

45057147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15019052.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 45057147 is about 6712.4620669319. The cubic root of 45057147 is about 355.8398340028.

The spelling of 45057147 in words is "forty-five million, fifty-seven thousand, one hundred forty-seven".