231444214 has 4 divisors (see below), whose sum is σ = 347166324. Its totient is φ = 115722106.

The previous prime is 231444211. The next prime is 231444217. The reversal of 231444214 is 412444132.

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

It is an interprime number because it is at equal distance from previous prime (231444211) and next prime (231444217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231444211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57861052 + ... + 57861055.

It is an arithmetic number, because the mean of its divisors is an integer number (86791581).

Almost surely, 2^231444214 is an apocalyptic number.

231444214 is a deficient number, since it is larger than the sum of its proper divisors (115722110).

231444214 is a wasteful number, since it uses less digits than its factorization.

231444214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115722109.

The product of its digits is 3072, while the sum is 25.

The square root of 231444214 is about 15213.2907025403. The cubic root of 231444214 is about 613.9722973068.

Adding to 231444214 its reverse (412444132), we get a palindrome (643888346).

The spelling of 231444214 in words is "two hundred thirty-one million, four hundred forty-four thousand, two hundred fourteen".