1147681825 has 12 divisors (see below), whose sum is σ = 1456222768. Its totient is φ = 896792400.

The previous prime is 1147681823. The next prime is 1147681831. The reversal of 1147681825 is 5281867411.

It is not a de Polignac number, because 1147681825 - 2¹ = 1147681823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147681823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532731 + ... + 534880.

Almost surely, 2^1147681825 is an apocalyptic number.

It is an amenable number.

1147681825 is a deficient number, since it is larger than the sum of its proper divisors (308540943).

1147681825 is a wasteful number, since it uses less digits than its factorization.

1147681825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067664 (or 1067659 counting only the distinct ones).

The product of its digits is 107520, while the sum is 43.

The square root of 1147681825 is about 33877.4530477130. The cubic root of 1147681825 is about 1046.9851005610.

The spelling of 1147681825 in words is "one billion, one hundred forty-seven million, six hundred eighty-one thousand, eight hundred twenty-five".