254731 has 2 divisors, whose sum is σ = 254732. Its totient is φ = 254730.

The previous prime is 254729. The next prime is 254741. The reversal of 254731 is 137452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254731 - 2¹ = 254729 is a prime.

It is a super-2 number, since 2×254731² = 129775764722, which contains 22 as substring.

Together with 254729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (254741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127365 + 127366.

It is an arithmetic number, because the mean of its divisors is an integer number (127366).

2²⁵⁴⁷³¹ is an apocalyptic number.

254731 is a deficient number, since it is larger than the sum of its proper divisors (1).

254731 is an equidigital number, since it uses as much as digits as its factorization.

254731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 254731 is about 504.7088269488. The cubic root of 254731 is about 63.3909509520.

The spelling of 254731 in words is "two hundred fifty-four thousand, seven hundred thirty-one".