1254664799 has 2 divisors, whose sum is σ = 1254664800. Its totient is φ = 1254664798.

The previous prime is 1254664777. The next prime is 1254664819. The reversal of 1254664799 is 9974664521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1254664799 - 2¹² = 1254660703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1254664799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254664759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627332399 + 627332400.

It is an arithmetic number, because the mean of its divisors is an integer number (627332400).

Almost surely, 2^1254664799 is an apocalyptic number.

1254664799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254664799 is an equidigital number, since it uses as much as digits as its factorization.

1254664799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 1254664799 is about 35421.2478464551. The cubic root of 1254664799 is about 1078.5556822126. Note that the first 3 decimals are identical.

The spelling of 1254664799 in words is "one billion, two hundred fifty-four million, six hundred sixty-four thousand, seven hundred ninety-nine".