1248454647 has 48 divisors (see below), whose sum is σ = 2080503040. Its totient is φ = 738959760.

The previous prime is 1248454639. The next prime is 1248454667. The reversal of 1248454647 is 7464548421.

1248454647 is a `hidden beast` number, since 1 + 24 + 84 + 546 + 4 + 7 = 666.

It is not a de Polignac number, because 1248454647 - 2³ = 1248454639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248454607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136038 + ... + 144924.

Almost surely, 2^1248454647 is an apocalyptic number.

1248454647 is a deficient number, since it is larger than the sum of its proper divisors (832048393).

1248454647 is a wasteful number, since it uses less digits than its factorization.

1248454647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8961 (or 8944 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 1248454647 is about 35333.4777088245. The cubic root of 1248454647 is about 1076.7732470072.

The spelling of 1248454647 in words is "one billion, two hundred forty-eight million, four hundred fifty-four thousand, six hundred forty-seven".