45717189 has 8 divisors (see below), whose sum is σ = 69664320. Its totient is φ = 26124096.

The previous prime is 45717181. The next prime is 45717193. The reversal of 45717189 is 98171754.

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

It is not a de Polignac number, because 45717189 - 2³ = 45717181 is a prime.

It is a super-2 number, since 2×45717189² = 4180122740123442, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45717189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45717181) 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, 1088484 + ... + 1088525.

It is an arithmetic number, because the mean of its divisors is an integer number (8708040).

Almost surely, 2^45717189 is an apocalyptic number.

It is an amenable number.

45717189 is a deficient number, since it is larger than the sum of its proper divisors (23947131).

45717189 is a wasteful number, since it uses less digits than its factorization.

45717189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177019.

The product of its digits is 70560, while the sum is 42.

The square root of 45717189 is about 6761.4487352933. The cubic root of 45717189 is about 357.5689833790.

The spelling of 45717189 in words is "forty-five million, seven hundred seventeen thousand, one hundred eighty-nine".