45172153 has 8 divisors (see below), whose sum is σ = 49962248. Its totient is φ = 40569984.

The previous prime is 45172151. The next prime is 45172157. The reversal of 45172153 is 35127154.

It is a happy number.

45172153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10738729 + 34433424 = 3277^2 + 5868^2 .

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

It is not a de Polignac number, because 45172153 - 2¹ = 45172151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45172151) 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 7 ways as a sum of consecutive naturals, for example, 46476 + ... + 47437.

It is an arithmetic number, because the mean of its divisors is an integer number (6245281).

Almost surely, 2^45172153 is an apocalyptic number.

It is an amenable number.

45172153 is a deficient number, since it is larger than the sum of its proper divisors (4790095).

45172153 is a wasteful number, since it uses less digits than its factorization.

45172153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93963.

The product of its digits is 4200, while the sum is 28.

The square root of 45172153 is about 6721.0232107916. The cubic root of 45172153 is about 356.1423309385.

It can be divided in two parts, 4517 and 2153, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 45172153 in words is "forty-five million, one hundred seventy-two thousand, one hundred fifty-three".