1165771041 has 4 divisors (see below), whose sum is σ = 1554361392. Its totient is φ = 777180692.

The previous prime is 1165771021. The next prime is 1165771043. The reversal of 1165771041 is 1401775611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1165771041 - 2¹⁰ = 1165770017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1165770993 and 1165771011.

It is not an unprimeable number, because it can be changed into a prime (1165771043) 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, 194295171 + ... + 194295176.

It is an arithmetic number, because the mean of its divisors is an integer number (388590348).

Almost surely, 2^1165771041 is an apocalyptic number.

It is an amenable number.

1165771041 is a deficient number, since it is larger than the sum of its proper divisors (388590351).

1165771041 is an equidigital number, since it uses as much as digits as its factorization.

1165771041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388590350.

The product of its (nonzero) digits is 5880, while the sum is 33.

The square root of 1165771041 is about 34143.3894187440. The cubic root of 1165771041 is about 1052.4571452282.

The spelling of 1165771041 in words is "one billion, one hundred sixty-five million, seven hundred seventy-one thousand, forty-one".