1170720825 has 24 divisors (see below), whose sum is σ = 1940911488. Its totient is φ = 622668480.

The previous prime is 1170720799. The next prime is 1170720841. The reversal of 1170720825 is 5280270711.

It is not a de Polignac number, because 1170720825 - 2⁸ = 1170720569 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6259 + ... + 48791.

It is an arithmetic number, because the mean of its divisors is an integer number (80871312).

Almost surely, 2^1170720825 is an apocalyptic number.

1170720825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1170720825 is a deficient number, since it is larger than the sum of its proper divisors (770190663).

1170720825 is a wasteful number, since it uses less digits than its factorization.

1170720825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42913 (or 42908 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1170720825 is about 34215.7978863565. The cubic root of 1170720825 is about 1053.9445956592.

The spelling of 1170720825 in words is "one billion, one hundred seventy million, seven hundred twenty thousand, eight hundred twenty-five".