254513321 has 2 divisors, whose sum is σ = 254513322. Its totient is φ = 254513320.

The previous prime is 254513299. The next prime is 254513327. The reversal of 254513321 is 123315452.

It is a happy number.

254513321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194295721 + 60217600 = 13939^2 + 7760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254513321 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (254513327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127256660 + 127256661.

It is an arithmetic number, because the mean of its divisors is an integer number (127256661).

Almost surely, 2^254513321 is an apocalyptic number.

It is an amenable number.

254513321 is a deficient number, since it is larger than the sum of its proper divisors (1).

254513321 is an equidigital number, since it uses as much as digits as its factorization.

254513321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 254513321 is about 15953.4736342904. The cubic root of 254513321 is about 633.7288900790.

Adding to 254513321 its reverse (123315452), we get a palindrome (377828773).

The spelling of 254513321 in words is "two hundred fifty-four million, five hundred thirteen thousand, three hundred twenty-one".