231041505 has 16 divisors (see below), whose sum is σ = 379658304. Its totient is φ = 119891520.

The previous prime is 231041467. The next prime is 231041557. The reversal of 231041505 is 505140132.

It is not a de Polignac number, because 231041505 - 2²⁴ = 214264289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207591 + ... + 208700.

It is an arithmetic number, because the mean of its divisors is an integer number (23728644).

Almost surely, 2^231041505 is an apocalyptic number.

It is an amenable number.

231041505 is a deficient number, since it is larger than the sum of its proper divisors (148616799).

231041505 is a wasteful number, since it uses less digits than its factorization.

231041505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416336.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 231041505 is about 15200.0495064983. The cubic root of 231041505 is about 613.6159901154.

Adding to 231041505 its reverse (505140132), we get a palindrome (736181637).

The spelling of 231041505 in words is "two hundred thirty-one million, forty-one thousand, five hundred five".