1061115725 has 6 divisors (see below), whose sum is σ = 1315783530. Its totient is φ = 848892560.

The previous prime is 1061115719. The next prime is 1061115749. The reversal of 1061115725 is 5275111601.

It can be written as a sum of positive squares in 3 ways, for example, as 11485321 + 1049630404 = 3389^2 + 32398^2 .

It is not a de Polignac number, because 1061115725 - 2²⁰ = 1060067149 is a prime.

It is a super-2 number, since 2×1061115725² = 2251933163684551250, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 21222290 + ... + 21222339.

It is an arithmetic number, because the mean of its divisors is an integer number (219297255).

Almost surely, 2^1061115725 is an apocalyptic number.

It is an amenable number.

1061115725 is a deficient number, since it is larger than the sum of its proper divisors (254667805).

1061115725 is an equidigital number, since it uses as much as digits as its factorization.

1061115725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42444639 (or 42444634 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 29.

The square root of 1061115725 is about 32574.7712962041. The cubic root of 1061115725 is about 1019.9704351933.

The spelling of 1061115725 in words is "one billion, sixty-one million, one hundred fifteen thousand, seven hundred twenty-five".