231641804 has 12 divisors (see below), whose sum is σ = 406838544. Its totient is φ = 115402224.

The previous prime is 231641789. The next prime is 231641849. The reversal of 231641804 is 408146132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103424 + ... + 105639.

It is an arithmetic number, because the mean of its divisors is an integer number (33903212).

Almost surely, 2^231641804 is an apocalyptic number.

It is an amenable number.

231641804 is a deficient number, since it is larger than the sum of its proper divisors (175196740).

231641804 is a wasteful number, since it uses less digits than its factorization.

231641804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209344 (or 209342 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 231641804 is about 15219.7833098898. The cubic root of 231641804 is about 614.1469690305.

Adding to 231641804 its reverse (408146132), we get a palindrome (639787936).

The spelling of 231641804 in words is "two hundred thirty-one million, six hundred forty-one thousand, eight hundred four".