1247553004 has 24 divisors (see below), whose sum is σ = 2204858880. Its totient is φ = 617613696.

The previous prime is 1247552989. The next prime is 1247553031. The reversal of 1247553004 is 4003557421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280752 + ... + 285160.

It is an arithmetic number, because the mean of its divisors is an integer number (91869120).

Almost surely, 2^1247553004 is an apocalyptic number.

It is an amenable number.

1247553004 is a deficient number, since it is larger than the sum of its proper divisors (957305876).

1247553004 is a wasteful number, since it uses less digits than its factorization.

1247553004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097 (or 5095 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1247553004 is about 35320.7163574014. The cubic root of 1247553004 is about 1076.5139667632.

The spelling of 1247553004 in words is "one billion, two hundred forty-seven million, five hundred fifty-three thousand, four".