1254467291281 has 2 divisors, whose sum is σ = 1254467291282. Its totient is φ = 1254467291280.

The previous prime is 1254467291267. The next prime is 1254467291359. The reversal of 1254467291281 is 1821927644521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031077776400 + 223389514881 = 1015420^2 + 472641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254467291281 - 2³¹ = 1252319807633 is a prime.

It is a super-2 number, since 2×1254467291281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1254467291201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627233645640 + 627233645641.

It is an arithmetic number, because the mean of its divisors is an integer number (627233645641).

Almost surely, 2^{1254467291281} is an apocalyptic number.

It is an amenable number.

1254467291281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254467291281 is an equidigital number, since it uses as much as digits as its factorization.

1254467291281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The spelling of 1254467291281 in words is "one trillion, two hundred fifty-four billion, four hundred sixty-seven million, two hundred ninety-one thousand, two hundred eighty-one".