231789475 has 12 divisors (see below), whose sum is σ = 304326504. Its totient is φ = 174523520.

The previous prime is 231789463. The next prime is 231789491. The reversal of 231789475 is 574987132.

It is not a de Polignac number, because 231789475 - 2¹¹ = 231787427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272269 + ... + 273118.

It is an arithmetic number, because the mean of its divisors is an integer number (25360542).

Almost surely, 2^231789475 is an apocalyptic number.

231789475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231789475 is a deficient number, since it is larger than the sum of its proper divisors (72537029).

231789475 is a wasteful number, since it uses less digits than its factorization.

231789475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545414 (or 545409 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 231789475 is about 15224.6338215407. The cubic root of 231789475 is about 614.2774469644.

The spelling of 231789475 in words is "two hundred thirty-one million, seven hundred eighty-nine thousand, four hundred seventy-five".