254781473 has 2 divisors, whose sum is σ = 254781474. Its totient is φ = 254781472.

The previous prime is 254781437. The next prime is 254781481. The reversal of 254781473 is 374187452.

254781473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (254781437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161620369 + 93161104 = 12713^2 + 9652^2 .

It is a cyclic number.

It is not a de Polignac number, because 254781473 - 2¹² = 254777377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254781473.

It is not a weakly prime, because it can be changed into another prime (254781413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127390736 + 127390737.

It is an arithmetic number, because the mean of its divisors is an integer number (127390737).

Almost surely, 2^254781473 is an apocalyptic number.

It is an amenable number.

254781473 is a deficient number, since it is larger than the sum of its proper divisors (1).

254781473 is an equidigital number, since it uses as much as digits as its factorization.

254781473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 41.

The square root of 254781473 is about 15961.8756103410. The cubic root of 254781473 is about 633.9513748628.

The spelling of 254781473 in words is "two hundred fifty-four million, seven hundred eighty-one thousand, four hundred seventy-three".