126244231 has 2 divisors, whose sum is σ = 126244232. Its totient is φ = 126244230.

The previous prime is 126244219. The next prime is 126244241. The reversal of 126244231 is 132442621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (132442621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126244231 - 2⁵ = 126244199 is a prime.

It is a super-2 number, since 2×126244231² = 31875211721562722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126244196 and 126244205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126244201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63122115 + 63122116.

It is an arithmetic number, because the mean of its divisors is an integer number (63122116).

Almost surely, 2^126244231 is an apocalyptic number.

126244231 is a deficient number, since it is larger than the sum of its proper divisors (1).

126244231 is an equidigital number, since it uses as much as digits as its factorization.

126244231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 126244231 is about 11235.8458070588. The cubic root of 126244231 is about 501.6535005111.

Adding to 126244231 its reverse (132442621), we get a palindrome (258686852).

The spelling of 126244231 in words is "one hundred twenty-six million, two hundred forty-four thousand, two hundred thirty-one".