475969231 has 4 divisors (see below), whose sum is σ = 476015512. Its totient is φ = 475922952.

The previous prime is 475969229. The next prime is 475969289. The reversal of 475969231 is 132969574.

It is a happy number.

475969231 is a nontrivial binomial coefficient, being equal to C(30854, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(475969231) divides (475969231-1)³.

It is a cyclic number.

It is not a de Polignac number, because 475969231 - 2¹ = 475969229 is a prime.

It is a super-2 number, since 2×475969231² = 453093417717462722, which contains 22 as substring.

It is a deceptive number, since it divides R_475969230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475969331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 30853.

It is an arithmetic number, because the mean of its divisors is an integer number (119003878).

Almost surely, 2^475969231 is an apocalyptic number.

475969231 is the 30853-rd triangular number and also the 15427-th hexagonal number.

475969231 is the 10285-th centered nonagonal number.

475969231 is a deficient number, since it is larger than the sum of its proper divisors (46281).

475969231 is a wasteful number, since it uses less digits than its factorization.

475969231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46280.

The product of its digits is 408240, while the sum is 46.

The square root of 475969231 is about 21816.7190704744. The cubic root of 475969231 is about 780.7757081422.

The spelling of 475969231 in words is "four hundred seventy-five million, nine hundred sixty-nine thousand, two hundred thirty-one".