1165725027 has 40 divisors (see below), whose sum is σ = 1790412800. Its totient is φ = 755582256.

The previous prime is 1165725019. The next prime is 1165725047. The reversal of 1165725027 is 7205275611.

1165725027 is a `hidden beast` number, since 1 + 16 + 572 + 50 + 27 = 666.

It is not a de Polignac number, because 1165725027 - 2³ = 1165725019 is a prime.

It is a super-4 number, since 4×1165725027⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165724982 and 1165725000.

It is not an unprimeable number, because it can be changed into a prime (1165725007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 427374 + ... + 430092.

It is an arithmetic number, because the mean of its divisors is an integer number (44760320).

Almost surely, 2^1165725027 is an apocalyptic number.

1165725027 is a deficient number, since it is larger than the sum of its proper divisors (624687773).

1165725027 is an equidigital number, since it uses as much as digits as its factorization.

1165725027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1165725027 is about 34142.7155774112. The cubic root of 1165725027 is about 1052.4432979122.

The spelling of 1165725027 in words is "one billion, one hundred sixty-five million, seven hundred twenty-five thousand, twenty-seven".