45171117 has 12 divisors (see below), whose sum is σ = 67011100. Its totient is φ = 29299968.

The previous prime is 45171107. The next prime is 45171127. The reversal of 45171117 is 71117154.

It is an interprime number because it is at equal distance from previous prime (45171107) and next prime (45171127).

It can be written as a sum of positive squares in 2 ways, for example, as 43283241 + 1887876 = 6579^2 + 1374^2 .

It is not a de Polignac number, because 45171117 - 2¹⁸ = 44908973 is a prime.

It is a super-2 number, since 2×45171117² = 4080859622055378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45171107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67492 + ... + 68157.

Almost surely, 2^45171117 is an apocalyptic number.

It is an amenable number.

45171117 is a deficient number, since it is larger than the sum of its proper divisors (21839983).

45171117 is a wasteful number, since it uses less digits than its factorization.

45171117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135692 (or 135689 counting only the distinct ones).

The product of its digits is 980, while the sum is 27.

The square root of 45171117 is about 6720.9461387516. The cubic root of 45171117 is about 356.1396082709.

The spelling of 45171117 in words is "forty-five million, one hundred seventy-one thousand, one hundred seventeen".