254694721 has 2 divisors, whose sum is σ = 254694722. Its totient is φ = 254694720.

The previous prime is 254694701. The next prime is 254694751. The reversal of 254694721 is 127496452.

254694721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232227121 + 22467600 = 15239^2 + 4740^2 .

It is a cyclic number.

It is not a de Polignac number, because 254694721 - 2¹¹ = 254692673 is a prime.

It is not a weakly prime, because it can be changed into another prime (254694701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127347360 + 127347361.

It is an arithmetic number, because the mean of its divisors is an integer number (127347361).

Almost surely, 2^254694721 is an apocalyptic number.

It is an amenable number.

254694721 is a deficient number, since it is larger than the sum of its proper divisors (1).

254694721 is an equidigital number, since it uses as much as digits as its factorization.

254694721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 254694721 is about 15959.1579038494. The cubic root of 254694721 is about 633.8794141190.

The spelling of 254694721 in words is "two hundred fifty-four million, six hundred ninety-four thousand, seven hundred twenty-one".