244142231 has 2 divisors, whose sum is σ = 244142232. Its totient is φ = 244142230.

The previous prime is 244142189. The next prime is 244142257. The reversal of 244142231 is 132241442.

244142231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 244142231 - 2²² = 239947927 is a prime.

It is a super-2 number, since 2×244142231² = 119210857915314722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 244142197 and 244142206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244144231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122071115 + 122071116.

It is an arithmetic number, because the mean of its divisors is an integer number (122071116).

Almost surely, 2^244142231 is an apocalyptic number.

244142231 is a deficient number, since it is larger than the sum of its proper divisors (1).

244142231 is an equidigital number, since it uses as much as digits as its factorization.

244142231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 23.

The square root of 244142231 is about 15625.0513919155. The cubic root of 244142231 is about 625.0013704503.

Adding to 244142231 its reverse (132241442), we get a palindrome (376383673).

The spelling of 244142231 in words is "two hundred forty-four million, one hundred forty-two thousand, two hundred thirty-one".