255144431 has 2 divisors, whose sum is σ = 255144432. Its totient is φ = 255144430.

The previous prime is 255144427. The next prime is 255144443. The reversal of 255144431 is 134441552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255144431 - 2² = 255144427 is a prime.

It is a super-2 number, since 2×255144431² = 130197361340627522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 255144394 and 255144403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255144401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127572215 + 127572216.

It is an arithmetic number, because the mean of its divisors is an integer number (127572216).

Almost surely, 2^255144431 is an apocalyptic number.

255144431 is a deficient number, since it is larger than the sum of its proper divisors (1).

255144431 is an equidigital number, since it uses as much as digits as its factorization.

255144431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 255144431 is about 15973.2410925272. The cubic root of 255144431 is about 634.2522713424.

Adding to 255144431 its reverse (134441552), we get a palindrome (389585983).

The spelling of 255144431 in words is "two hundred fifty-five million, one hundred forty-four thousand, four hundred thirty-one".