45187452 has 36 divisors (see below), whose sum is σ = 118165320. Its totient is φ = 14542752.

The previous prime is 45187421. The next prime is 45187463. The reversal of 45187452 is 25478154.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20598 + ... + 22685.

It is an arithmetic number, because the mean of its divisors is an integer number (3282370).

Almost surely, 2^45187452 is an apocalyptic number.

It is an amenable number.

45187452 is an abundant number, since it is smaller than the sum of its proper divisors (72977868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45187452 is a wasteful number, since it uses less digits than its factorization.

45187452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43322 (or 43317 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 45187452 is about 6722.1612595950. The cubic root of 45187452 is about 356.1825327454.

The spelling of 45187452 in words is "forty-five million, one hundred eighty-seven thousand, four hundred fifty-two".