254105431 has 2 divisors, whose sum is σ = 254105432. Its totient is φ = 254105430.

The previous prime is 254105407. The next prime is 254105461. The reversal of 254105431 is 134501452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254105431 - 2⁹ = 254104919 is a prime.

It is a super-3 number, since 3×254105431³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 254105396 and 254105405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254105461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127052715 + 127052716.

It is an arithmetic number, because the mean of its divisors is an integer number (127052716).

Almost surely, 2^254105431 is an apocalyptic number.

254105431 is a deficient number, since it is larger than the sum of its proper divisors (1).

254105431 is an equidigital number, since it uses as much as digits as its factorization.

254105431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 254105431 is about 15940.6847719914. The cubic root of 254105431 is about 633.3901653217.

Adding to 254105431 its reverse (134501452), we get a palindrome (388606883).

The spelling of 254105431 in words is "two hundred fifty-four million, one hundred five thousand, four hundred thirty-one".