1254747447 has 12 divisors (see below), whose sum is σ = 1813816680. Its totient is φ = 835850448.

The previous prime is 1254747443. The next prime is 1254747499. The reversal of 1254747447 is 7447474521.

1254747447 is a `hidden beast` number, since 125 + 47 + 47 + 447 = 666.

It is not a de Polignac number, because 1254747447 - 2² = 1254747443 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254747443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41572 + ... + 65097.

It is an arithmetic number, because the mean of its divisors is an integer number (151151390).

Almost surely, 2^1254747447 is an apocalyptic number.

1254747447 is a deficient number, since it is larger than the sum of its proper divisors (559069233).

1254747447 is a wasteful number, since it uses less digits than its factorization.

1254747447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107982 (or 107979 counting only the distinct ones).

The product of its digits is 878080, while the sum is 45.

The square root of 1254747447 is about 35422.4144716308. The cubic root of 1254747447 is about 1078.5793641057.

The spelling of 1254747447 in words is "one billion, two hundred fifty-four million, seven hundred forty-seven thousand, four hundred forty-seven".