231141908 has 6 divisors (see below), whose sum is σ = 404498346. Its totient is φ = 115570952.

The previous prime is 231141907. The next prime is 231141941. The reversal of 231141908 is 809141132.

231141908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 191047684 + 40094224 = 13822^2 + 6332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231141901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28892735 + ... + 28892742.

It is an arithmetic number, because the mean of its divisors is an integer number (67416391).

Almost surely, 2^231141908 is an apocalyptic number.

It is an amenable number.

231141908 is a deficient number, since it is larger than the sum of its proper divisors (173356438).

231141908 is a wasteful number, since it uses less digits than its factorization.

231141908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57785481 (or 57785479 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 231141908 is about 15203.3518672693. The cubic root of 231141908 is about 613.7048629841.

The spelling of 231141908 in words is "two hundred thirty-one million, one hundred forty-one thousand, nine hundred eight".