1165915141 has 2 divisors, whose sum is σ = 1165915142. Its totient is φ = 1165915140.

The previous prime is 1165915139. The next prime is 1165915169. The reversal of 1165915141 is 1415195611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161378241 + 4536900 = 34079^2 + 2130^2 .

It is an emirp because it is prime and its reverse (1415195611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1165915141 - 2¹ = 1165915139 is a prime.

Together with 1165915139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1165915097 and 1165915106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165915111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582957570 + 582957571.

It is an arithmetic number, because the mean of its divisors is an integer number (582957571).

Almost surely, 2^1165915141 is an apocalyptic number.

It is an amenable number.

1165915141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165915141 is an equidigital number, since it uses as much as digits as its factorization.

1165915141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 34.

The square root of 1165915141 is about 34145.4995716859. The cubic root of 1165915141 is about 1052.5005078958.

The spelling of 1165915141 in words is "one billion, one hundred sixty-five million, nine hundred fifteen thousand, one hundred forty-one".