231214439 has 4 divisors (see below), whose sum is σ = 243383640. Its totient is φ = 219045240.

The previous prime is 231214429. The next prime is 231214471. The reversal of 231214439 is 934412132.

231214439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231214439 - 2⁸ = 231214183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231214429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6084572 + ... + 6084609.

It is an arithmetic number, because the mean of its divisors is an integer number (60845910).

Almost surely, 2^231214439 is an apocalyptic number.

231214439 is a deficient number, since it is larger than the sum of its proper divisors (12169201).

231214439 is a wasteful number, since it uses less digits than its factorization.

231214439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12169200.

The product of its digits is 5184, while the sum is 29.

The square root of 231214439 is about 15205.7370423140. The cubic root of 231214439 is about 613.7690486219.

The spelling of 231214439 in words is "two hundred thirty-one million, two hundred fourteen thousand, four hundred thirty-nine".