1247527472 has 20 divisors (see below), whose sum is σ = 2418855600. Its totient is φ = 623306688.

The previous prime is 1247527469. The next prime is 1247527493. The reversal of 1247527472 is 2747257421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483 + ... + 50250.

It is an arithmetic number, because the mean of its divisors is an integer number (120942780).

Almost surely, 2^1247527472 is an apocalyptic number.

It is an amenable number.

1247527472 is a deficient number, since it is larger than the sum of its proper divisors (1171328128).

1247527472 is a wasteful number, since it uses less digits than its factorization.

1247527472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57140 (or 57134 counting only the distinct ones).

The product of its digits is 219520, while the sum is 41.

The square root of 1247527472 is about 35320.3549246040. The cubic root of 1247527472 is about 1076.5066228556.

The spelling of 1247527472 in words is "one billion, two hundred forty-seven million, five hundred twenty-seven thousand, four hundred seventy-two".