1132106561 has 4 divisors (see below), whose sum is σ = 1132282500. Its totient is φ = 1131930624.

The previous prime is 1132106543. The next prime is 1132106567. The reversal of 1132106561 is 1656012311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 994771600 + 137334961 = 31540^2 + 11719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132106561 - 2²⁶ = 1064997697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1132106561.

It is not an unprimeable number, because it can be changed into a prime (1132106567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77936 + ... + 91313.

It is an arithmetic number, because the mean of its divisors is an integer number (283070625).

Almost surely, 2^1132106561 is an apocalyptic number.

It is an amenable number.

1132106561 is a deficient number, since it is larger than the sum of its proper divisors (175939).

1132106561 is an equidigital number, since it uses as much as digits as its factorization.

1132106561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175938.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1132106561 is about 33646.7912437427. The cubic root of 1132106561 is about 1042.2272782156.

Adding to 1132106561 its reverse (1656012311), we get a palindrome (2788118872).

The spelling of 1132106561 in words is "one billion, one hundred thirty-two million, one hundred six thousand, five hundred sixty-one".