254313649 has 2 divisors, whose sum is σ = 254313650. Its totient is φ = 254313648.

The previous prime is 254313643. The next prime is 254313667. The reversal of 254313649 is 946313452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190633249 + 63680400 = 13807^2 + 7980^2 .

It is a cyclic number.

It is not a de Polignac number, because 254313649 - 2¹¹ = 254311601 is a prime.

It is not a weakly prime, because it can be changed into another prime (254313643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127156824 + 127156825.

It is an arithmetic number, because the mean of its divisors is an integer number (127156825).

Almost surely, 2^254313649 is an apocalyptic number.

It is an amenable number.

254313649 is a deficient number, since it is larger than the sum of its proper divisors (1).

254313649 is an equidigital number, since it uses as much as digits as its factorization.

254313649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 254313649 is about 15947.2144589580. The cubic root of 254313649 is about 633.5631213882.

The spelling of 254313649 in words is "two hundred fifty-four million, three hundred thirteen thousand, six hundred forty-nine".