254640361 has 2 divisors, whose sum is σ = 254640362. Its totient is φ = 254640360.

The previous prime is 254640317. The next prime is 254640371. The reversal of 254640361 is 163046452.

254640361 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., 157025961 + 97614400 = 12531^2 + 9880^2 .

It is a cyclic number.

It is not a de Polignac number, because 254640361 - 2²¹ = 252543209 is a prime.

It is equal to p_13919206 and since 254640361 and 13919206 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (254640301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127320180 + 127320181.

It is an arithmetic number, because the mean of its divisors is an integer number (127320181).

Almost surely, 2^254640361 is an apocalyptic number.

It is an amenable number.

254640361 is a deficient number, since it is larger than the sum of its proper divisors (1).

254640361 is an equidigital number, since it uses as much as digits as its factorization.

254640361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 254640361 is about 15957.4547155867. The cubic root of 254640361 is about 633.8343141963.

The spelling of 254640361 in words is "two hundred fifty-four million, six hundred forty thousand, three hundred sixty-one".