1161032725 has 12 divisors (see below), whose sum is σ = 1440103140. Its totient is φ = 928553600.

The previous prime is 1161032713. The next prime is 1161032767. The reversal of 1161032725 is 5272301611.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 111661489 + 1049371236 = 10567^2 + 32394^2 .

It is not a de Polignac number, because 1161032725 - 2⁵ = 1161032693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161032693 and 1161032702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165591 + ... + 172459.

It is an arithmetic number, because the mean of its divisors is an integer number (120008595).

Almost surely, 2^1161032725 is an apocalyptic number.

It is an amenable number.

1161032725 is a deficient number, since it is larger than the sum of its proper divisors (279070415).

1161032725 is an equidigital number, since it uses as much as digits as its factorization.

1161032725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13640 (or 13635 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1161032725 is about 34073.9302840163. The cubic root of 1161032725 is about 1051.0292930191.

It can be divided in two parts, 116103 and 2725, that added together give a triangular number (118828 = T₄₈₇).

The spelling of 1161032725 in words is "one billion, one hundred sixty-one million, thirty-two thousand, seven hundred twenty-five".