254251157 has 2 divisors, whose sum is σ = 254251158. Its totient is φ = 254251156.

The previous prime is 254251139. The next prime is 254251163. The reversal of 254251157 is 751152452.

254251157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253892356 + 358801 = 15934^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 254251157 - 2¹⁸ = 253989013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254251117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127125578 + 127125579.

It is an arithmetic number, because the mean of its divisors is an integer number (127125579).

Almost surely, 2^254251157 is an apocalyptic number.

It is an amenable number.

254251157 is a deficient number, since it is larger than the sum of its proper divisors (1).

254251157 is an equidigital number, since it uses as much as digits as its factorization.

254251157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 32.

The square root of 254251157 is about 15945.2549995289. The cubic root of 254251157 is about 633.5112223910.

The spelling of 254251157 in words is "two hundred fifty-four million, two hundred fifty-one thousand, one hundred fifty-seven".