424136231 has 2 divisors, whose sum is σ = 424136232. Its totient is φ = 424136230.

The previous prime is 424136171. The next prime is 424136257. The reversal of 424136231 is 132631424.

It is an a-pointer prime, because the next prime (424136257) can be obtained adding 424136231 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424136231 - 2¹⁰ = 424135207 is a prime.

It is a super-2 number, since 2×424136231² = 359783084893770722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424136231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424136731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212068115 + 212068116.

It is an arithmetic number, because the mean of its divisors is an integer number (212068116).

Almost surely, 2^424136231 is an apocalyptic number.

424136231 is a deficient number, since it is larger than the sum of its proper divisors (1).

424136231 is an equidigital number, since it uses as much as digits as its factorization.

424136231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 424136231 is about 20594.5679974114. The cubic root of 424136231 is about 751.3376017513.

Adding to 424136231 its reverse (132631424), we get a palindrome (556767655).

The spelling of 424136231 in words is "four hundred twenty-four million, one hundred thirty-six thousand, two hundred thirty-one".