254003121247 has 2 divisors, whose sum is σ = 254003121248. Its totient is φ = 254003121246.

The previous prime is 254003121223. The next prime is 254003121277. The reversal of 254003121247 is 742121300452.

It is a happy number.

254003121247 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254003121247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254003121277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127001560623 + 127001560624.

It is an arithmetic number, because the mean of its divisors is an integer number (127001560624).

Almost surely, 2^254003121247 is an apocalyptic number.

254003121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

254003121247 is an equidigital number, since it uses as much as digits as its factorization.

254003121247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 254003121247 its reverse (742121300452), we get a palindrome (996124421699).

The spelling of 254003121247 in words is "two hundred fifty-four billion, three million, one hundred twenty-one thousand, two hundred forty-seven".