45507939 has 8 divisors (see below), whose sum is σ = 61705920. Its totient is φ = 29824296.

The previous prime is 45507937. The next prime is 45507949. The reversal of 45507939 is 93970554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45507939 - 2¹ = 45507937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45507939.

It is not an unprimeable number, because it can be changed into a prime (45507937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128377 + ... + 128730.

It is an arithmetic number, because the mean of its divisors is an integer number (7713240).

Almost surely, 2^45507939 is an apocalyptic number.

45507939 is a deficient number, since it is larger than the sum of its proper divisors (16197981).

45507939 is a wasteful number, since it uses less digits than its factorization.

45507939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257169.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 45507939 is about 6745.9572337808. The cubic root of 45507939 is about 357.0226115346.

The spelling of 45507939 in words is "forty-five million, five hundred seven thousand, nine hundred thirty-nine".