45387170 has 8 divisors (see below), whose sum is σ = 81696924. Its totient is φ = 18154864.

The previous prime is 45387151. The next prime is 45387179. The reversal of 45387170 is 7178354.

It is a Cunningham number, because it is equal to 6737²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 45387169 + 1 = 6737^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 45387170.

It is not an unprimeable number, because it can be changed into a prime (45387179) 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, 2269349 + ... + 2269368.

Almost surely, 2^45387170 is an apocalyptic number.

45387170 is a deficient number, since it is larger than the sum of its proper divisors (36309754).

45387170 is a wasteful number, since it uses less digits than its factorization.

45387170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538724.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 45387170 is about 6737.0000742170. Note that the first 4 decimals coincide. The cubic root of 45387170 is about 356.7065094610.

The spelling of 45387170 in words is "forty-five million, three hundred eighty-seven thousand, one hundred seventy".