45173985 has 8 divisors (see below), whose sum is σ = 72278400. Its totient is φ = 24092784.

The previous prime is 45173957. The next prime is 45173987. The reversal of 45173985 is 58937154.

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

It is not a de Polignac number, because 45173985 - 2⁷ = 45173857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45173987) 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, 1505785 + ... + 1505814.

It is an arithmetic number, because the mean of its divisors is an integer number (9034800).

Almost surely, 2^45173985 is an apocalyptic number.

It is an amenable number.

45173985 is a deficient number, since it is larger than the sum of its proper divisors (27104415).

45173985 is a wasteful number, since it uses less digits than its factorization.

45173985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011607.

The product of its digits is 151200, while the sum is 42.

The square root of 45173985 is about 6721.1594981818. The cubic root of 45173985 is about 356.1471454381.

The spelling of 45173985 in words is "forty-five million, one hundred seventy-three thousand, nine hundred eighty-five".