45172163 has 2 divisors, whose sum is σ = 45172164. Its totient is φ = 45172162.

The previous prime is 45172157. The next prime is 45172187. The reversal of 45172163 is 36127154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45172163 - 2¹⁴ = 45155779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (45172663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22586081 + 22586082.

It is an arithmetic number, because the mean of its divisors is an integer number (22586082).

Almost surely, 2^45172163 is an apocalyptic number.

45172163 is a deficient number, since it is larger than the sum of its proper divisors (1).

45172163 is an equidigital number, since it uses as much as digits as its factorization.

45172163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 45172163 is about 6721.0239547259. The cubic root of 45172163 is about 356.1423572189.

The spelling of 45172163 in words is "forty-five million, one hundred seventy-two thousand, one hundred sixty-three".