475172157 has 16 divisors (see below), whose sum is σ = 668545920. Its totient is φ = 299599872.

The previous prime is 475172143. The next prime is 475172177. The reversal of 475172157 is 751271574.

It is a happy number.

It is not a de Polignac number, because 475172157 - 2¹¹ = 475170109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475172177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32548 + ... + 44829.

It is an arithmetic number, because the mean of its divisors is an integer number (41784120).

Almost surely, 2^475172157 is an apocalyptic number.

It is an amenable number.

475172157 is a deficient number, since it is larger than the sum of its proper divisors (193373763).

475172157 is a wasteful number, since it uses less digits than its factorization.

475172157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77492.

The product of its digits is 68600, while the sum is 39.

The square root of 475172157 is about 21798.4439123530. The cubic root of 475172157 is about 780.3396269177.

The spelling of 475172157 in words is "four hundred seventy-five million, one hundred seventy-two thousand, one hundred fifty-seven".