45232945 has 4 divisors (see below), whose sum is σ = 54279540. Its totient is φ = 36186352.

The previous prime is 45232933. The next prime is 45232949. The reversal of 45232945 is 54923254.

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 6145441 + 39087504 = 2479^2 + 6252^2 .

It is a cyclic number.

It is not a de Polignac number, because 45232945 - 2⁹ = 45232433 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 45232945.

It is not an unprimeable number, because it can be changed into a prime (45232949) 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, 4523290 + ... + 4523299.

It is an arithmetic number, because the mean of its divisors is an integer number (13569885).

Almost surely, 2^45232945 is an apocalyptic number.

It is an amenable number.

45232945 is a deficient number, since it is larger than the sum of its proper divisors (9046595).

45232945 is an equidigital number, since it uses as much as digits as its factorization.

45232945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046594.

The product of its digits is 43200, while the sum is 34.

The square root of 45232945 is about 6725.5442158981. The cubic root of 45232945 is about 356.3020229763.

The spelling of 45232945 in words is "forty-five million, two hundred thirty-two thousand, nine hundred forty-five".