45187851 has 8 divisors (see below), whose sum is σ = 60835840. Its totient is φ = 29832552.

The previous prime is 45187843. The next prime is 45187861. The reversal of 45187851 is 15878154.

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

It is not a de Polignac number, because 45187851 - 2³ = 45187843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45187811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72811 + ... + 73428.

It is an arithmetic number, because the mean of its divisors is an integer number (7604480).

Almost surely, 2^45187851 is an apocalyptic number.

45187851 is a deficient number, since it is larger than the sum of its proper divisors (15647989).

45187851 is a wasteful number, since it uses less digits than its factorization.

45187851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146345.

The product of its digits is 44800, while the sum is 39.

The square root of 45187851 is about 6722.1909374846. The cubic root of 45187851 is about 356.1835810926.

The spelling of 45187851 in words is "forty-five million, one hundred eighty-seven thousand, eight hundred fifty-one".