231008894 has 4 divisors (see below), whose sum is σ = 346513344. Its totient is φ = 115504446.

The previous prime is 231008893. The next prime is 231008909. The reversal of 231008894 is 498800132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231008893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57752222 + ... + 57752225.

It is an arithmetic number, because the mean of its divisors is an integer number (86628336).

Almost surely, 2^231008894 is an apocalyptic number.

231008894 is a deficient number, since it is larger than the sum of its proper divisors (115504450).

231008894 is a wasteful number, since it uses less digits than its factorization.

231008894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115504449.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 231008894 is about 15198.9767418731. The cubic root of 231008894 is about 613.5871185748.

The spelling of 231008894 in words is "two hundred thirty-one million, eight thousand, eight hundred ninety-four".