254442101 has 2 divisors, whose sum is σ = 254442102. Its totient is φ = 254442100.

The previous prime is 254442073. The next prime is 254442107. The reversal of 254442101 is 101244452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254402500 + 39601 = 15950^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 254442101 - 2⁶ = 254442037 is a prime.

It is a super-2 number, since 2×254442101² = 129481565522588402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254442107) 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, 127221050 + 127221051.

It is an arithmetic number, because the mean of its divisors is an integer number (127221051).

Almost surely, 2^254442101 is an apocalyptic number.

It is an amenable number.

254442101 is a deficient number, since it is larger than the sum of its proper divisors (1).

254442101 is an equidigital number, since it uses as much as digits as its factorization.

254442101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 254442101 is about 15951.2413623517. The cubic root of 254442101 is about 633.6697728300.

Adding to 254442101 its reverse (101244452), we get a palindrome (355686553).

The spelling of 254442101 in words is "two hundred fifty-four million, four hundred forty-two thousand, one hundred one".