254034661 has 2 divisors, whose sum is σ = 254034662. Its totient is φ = 254034660.

The previous prime is 254034659. The next prime is 254034709. The reversal of 254034661 is 166430452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190274436 + 63760225 = 13794^2 + 7985^2 .

It is a cyclic number.

It is not a de Polignac number, because 254034661 - 2¹ = 254034659 is a prime.

Together with 254034659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254034601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127017330 + 127017331.

It is an arithmetic number, because the mean of its divisors is an integer number (127017331).

Almost surely, 2^254034661 is an apocalyptic number.

It is an amenable number.

254034661 is a deficient number, since it is larger than the sum of its proper divisors (1).

254034661 is an equidigital number, since it uses as much as digits as its factorization.

254034661 is an odious number, because the sum of its binary digits is odd.

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

The square root of 254034661 is about 15938.4648256976. The cubic root of 254034661 is about 633.3313587812.

The spelling of 254034661 in words is "two hundred fifty-four million, thirty-four thousand, six hundred sixty-one".