1147825816 has 8 divisors (see below), whose sum is σ = 2152173420. Its totient is φ = 573912904.

The previous prime is 1147825807. The next prime is 1147825909. The reversal of 1147825816 is 6185287411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71739106 + ... + 71739121.

Almost surely, 2^1147825816 is an apocalyptic number.

It is an amenable number.

1147825816 is a deficient number, since it is larger than the sum of its proper divisors (1004347604).

1147825816 is a wasteful number, since it uses less digits than its factorization.

1147825816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143478233 (or 143478229 counting only the distinct ones).

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

The square root of 1147825816 is about 33879.5781555792. The cubic root of 1147825816 is about 1047.0288845100.

The spelling of 1147825816 in words is "one billion, one hundred forty-seven million, eight hundred twenty-five thousand, eight hundred sixteen".