1147485644 has 24 divisors (see below), whose sum is σ = 2034345936. Its totient is φ = 566280000.

The previous prime is 1147485643. The next prime is 1147485649. The reversal of 1147485644 is 4465847411.

It is a junction number, because it is equal to n+sod(n) for n = 1147485595 and 1147485604.

It is not an unprimeable number, because it can be changed into a prime (1147485641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129434 + ... + 138014.

It is an arithmetic number, because the mean of its divisors is an integer number (84764414).

Almost surely, 2^1147485644 is an apocalyptic number.

It is an amenable number.

1147485644 is a deficient number, since it is larger than the sum of its proper divisors (886860292).

1147485644 is a wasteful number, since it uses less digits than its factorization.

1147485644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017 (or 9015 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 1147485644 is about 33874.5574731243. The cubic root of 1147485644 is about 1046.9254410851.

The spelling of 1147485644 in words is "one billion, one hundred forty-seven million, four hundred eighty-five thousand, six hundred forty-four".