45171647 has 8 divisors (see below), whose sum is σ = 47323200. Its totient is φ = 43059744.

The previous prime is 45171617. The next prime is 45171667. The reversal of 45171647 is 74617154.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45171647 - 2⁶ = 45171583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45171617) 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, 7568 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (5915400).

Almost surely, 2^45171647 is an apocalyptic number.

45171647 is a deficient number, since it is larger than the sum of its proper divisors (2151553).

45171647 is a wasteful number, since it uses less digits than its factorization.

45171647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19825.

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

The square root of 45171647 is about 6720.9855676084. The cubic root of 45171647 is about 356.1410011466.

The spelling of 45171647 in words is "forty-five million, one hundred seventy-one thousand, six hundred forty-seven".