1126365161 has 4 divisors (see below), whose sum is σ = 1153837524. Its totient is φ = 1098892800.

The previous prime is 1126365157. The next prime is 1126365179. The reversal of 1126365161 is 1615636211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1615636211 = 7 ⋅230805173.

It can be written as a sum of positive squares in 2 ways, for example, as 378069136 + 748296025 = 19444^2 + 27355^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126365161 - 2² = 1126365157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126365101) 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 3 ways as a sum of consecutive naturals, for example, 13736120 + ... + 13736201.

It is an arithmetic number, because the mean of its divisors is an integer number (288459381).

Almost surely, 2^1126365161 is an apocalyptic number.

It is an amenable number.

1126365161 is a deficient number, since it is larger than the sum of its proper divisors (27472363).

1126365161 is an equidigital number, since it uses as much as digits as its factorization.

1126365161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27472362.

The product of its digits is 6480, while the sum is 32.

The square root of 1126365161 is about 33561.3641111323. The cubic root of 1126365161 is about 1040.4624302622.

The spelling of 1126365161 in words is "one billion, one hundred twenty-six million, three hundred sixty-five thousand, one hundred sixty-one".