45172167 has 4 divisors (see below), whose sum is σ = 60229560. Its totient is φ = 30114776.

The previous prime is 45172163. The next prime is 45172187. The reversal of 45172167 is 76127154.

45172167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45172167 - 2² = 45172163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45172163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7528692 + ... + 7528697.

It is an arithmetic number, because the mean of its divisors is an integer number (15057390).

Almost surely, 2^45172167 is an apocalyptic number.

45172167 is a deficient number, since it is larger than the sum of its proper divisors (15057393).

45172167 is a wasteful number, since it uses less digits than its factorization.

45172167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15057392.

The product of its digits is 11760, while the sum is 33.

The square root of 45172167 is about 6721.0242522996. The cubic root of 45172167 is about 356.1423677310.

The spelling of 45172167 in words is "forty-five million, one hundred seventy-two thousand, one hundred sixty-seven".