45189291 has 16 divisors (see below), whose sum is σ = 68966144. Its totient is φ = 25782624.

The previous prime is 45189271. The next prime is 45189359. The reversal of 45189291 is 19298154.

It is not a de Polignac number, because 45189291 - 2¹³ = 45181099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45189211) 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, 17325 + ... + 19761.

It is an arithmetic number, because the mean of its divisors is an integer number (4310384).

Almost surely, 2^45189291 is an apocalyptic number.

45189291 is a deficient number, since it is larger than the sum of its proper divisors (23776853).

45189291 is a wasteful number, since it uses less digits than its factorization.

45189291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330.

The product of its digits is 25920, while the sum is 39.

The square root of 45189291 is about 6722.2980445678. The cubic root of 45189291 is about 356.1873645499.

The spelling of 45189291 in words is "forty-five million, one hundred eighty-nine thousand, two hundred ninety-one".