254660149 has 2 divisors, whose sum is σ = 254660150. Its totient is φ = 254660148.

The previous prime is 254660113. The next prime is 254660171. The reversal of 254660149 is 941066452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218744100 + 35916049 = 14790^2 + 5993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254660149 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 (254661149) 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, 127330074 + 127330075.

It is an arithmetic number, because the mean of its divisors is an integer number (127330075).

Almost surely, 2^254660149 is an apocalyptic number.

It is an amenable number.

254660149 is a deficient number, since it is larger than the sum of its proper divisors (1).

254660149 is an equidigital number, since it uses as much as digits as its factorization.

254660149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 254660149 is about 15958.0747272345. The cubic root of 254660149 is about 633.8507321075.

The spelling of 254660149 in words is "two hundred fifty-four million, six hundred sixty thousand, one hundred forty-nine".