231238814 has 4 divisors (see below), whose sum is σ = 346858224. Its totient is φ = 115619406.

The previous prime is 231238807. The next prime is 231238817. The reversal of 231238814 is 418832132.

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 (231238817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57809702 + ... + 57809705.

It is an arithmetic number, because the mean of its divisors is an integer number (86714556).

Almost surely, 2^231238814 is an apocalyptic number.

231238814 is a deficient number, since it is larger than the sum of its proper divisors (115619410).

231238814 is a wasteful number, since it uses less digits than its factorization.

231238814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115619409.

The product of its digits is 9216, while the sum is 32.

The square root of 231238814 is about 15206.5385278833. The cubic root of 231238814 is about 613.7906160391.

The spelling of 231238814 in words is "two hundred thirty-one million, two hundred thirty-eight thousand, eight hundred fourteen".