475134721 has 8 divisors (see below), whose sum is σ = 483303744. Its totient is φ = 466997520.

The previous prime is 475134719. The next prime is 475134733. The reversal of 475134721 is 127431574.

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

It is a cyclic number.

It is not a de Polignac number, because 475134721 - 2¹ = 475134719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475134701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23196 + ... + 38578.

It is an arithmetic number, because the mean of its divisors is an integer number (60412968).

Almost surely, 2^475134721 is an apocalyptic number.

It is an amenable number.

475134721 is a deficient number, since it is larger than the sum of its proper divisors (8169023).

475134721 is a wasteful number, since it uses less digits than its factorization.

475134721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911.

The product of its digits is 23520, while the sum is 34.

The square root of 475134721 is about 21797.5852102934. The cubic root of 475134721 is about 780.3191336003.

The spelling of 475134721 in words is "four hundred seventy-five million, one hundred thirty-four thousand, seven hundred twenty-one".