475491123 has 6 divisors (see below), whose sum is σ = 686820524. Its totient is φ = 316994076.

The previous prime is 475491103. The next prime is 475491127. The reversal of 475491123 is 321194574.

475491123 is a `hidden beast` number, since 47 + 5 + 491 + 123 = 666.

It is not a de Polignac number, because 475491123 - 2⁵ = 475491091 is a prime.

It is a super-2 number, since 2×475491123² = 452183616103602258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475491127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26416165 + ... + 26416182.

Almost surely, 2^475491123 is an apocalyptic number.

475491123 is a deficient number, since it is larger than the sum of its proper divisors (211329401).

475491123 is a wasteful number, since it uses less digits than its factorization.

475491123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52832353 (or 52832350 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 475491123 is about 21805.7589411605. The cubic root of 475491123 is about 780.5141925171.

The spelling of 475491123 in words is "four hundred seventy-five million, four hundred ninety-one thousand, one hundred twenty-three".