45471217 has 8 divisors (see below), whose sum is σ = 51315840. Its totient is φ = 39911760.

The previous prime is 45471211. The next prime is 45471221. The reversal of 45471217 is 71217454.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45471217 is a prime.

It is a super-2 number, since 2×45471217² = 4135263150922178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45471211) 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, 70953 + ... + 71590.

It is an arithmetic number, because the mean of its divisors is an integer number (6414480).

Almost surely, 2^45471217 is an apocalyptic number.

It is an amenable number.

45471217 is a deficient number, since it is larger than the sum of its proper divisors (5844623).

45471217 is a wasteful number, since it uses less digits than its factorization.

45471217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142583.

The product of its digits is 7840, while the sum is 31.

The square root of 45471217 is about 6743.2349061856. The cubic root of 45471217 is about 356.9265542115.

The spelling of 45471217 in words is "forty-five million, four hundred seventy-one thousand, two hundred seventeen".