1171330025 has 18 divisors (see below), whose sum is σ = 1489267962. Its totient is φ = 913353600.

The previous prime is 1171329977. The next prime is 1171330033. The reversal of 1171330025 is 5200331711.

It can be written as a sum of positive squares in 9 ways, for example, as 660027481 + 511302544 = 25691^2 + 22612^2 .

It is not a de Polignac number, because 1171330025 - 2⁶ = 1171329961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1095191 + ... + 1096259.

It is an arithmetic number, because the mean of its divisors is an integer number (82737109).

Almost surely, 2^1171330025 is an apocalyptic number.

It is an amenable number.

1171330025 is a deficient number, since it is larger than the sum of its proper divisors (317937937).

1171330025 is an frugal number, since it uses more digits than its factorization.

1171330025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1171330025 is about 34224.6990490786. The cubic root of 1171330025 is about 1054.1273752760.

Adding to 1171330025 its reverse (5200331711), we get a palindrome (6371661736).

The spelling of 1171330025 in words is "one billion, one hundred seventy-one million, three hundred thirty thousand, twenty-five".