254297851 has 2 divisors, whose sum is σ = 254297852. Its totient is φ = 254297850.

The previous prime is 254297809. The next prime is 254297863. The reversal of 254297851 is 158792452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254297851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254297798 and 254297807.

It is not a weakly prime, because it can be changed into another prime (254297891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127148925 + 127148926.

It is an arithmetic number, because the mean of its divisors is an integer number (127148926).

Almost surely, 2^254297851 is an apocalyptic number.

254297851 is a deficient number, since it is larger than the sum of its proper divisors (1).

254297851 is an equidigital number, since it uses as much as digits as its factorization.

254297851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The square root of 254297851 is about 15946.7191296517. The cubic root of 254297851 is about 633.5500021061.

The spelling of 254297851 in words is "two hundred fifty-four million, two hundred ninety-seven thousand, eight hundred fifty-one".