1165234061 has 8 divisors (see below), whose sum is σ = 1179461784. Its totient is φ = 1151092800.

The previous prime is 1165234039. The next prime is 1165234067. The reversal of 1165234061 is 1604325611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 455011561 + 710222500 = 21331^2 + 26650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165234061 - 2²² = 1161039757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165234067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5711 + ... + 48611.

It is an arithmetic number, because the mean of its divisors is an integer number (147432723).

Almost surely, 2^1165234061 is an apocalyptic number.

It is an amenable number.

1165234061 is a deficient number, since it is larger than the sum of its proper divisors (14227723).

1165234061 is a wasteful number, since it uses less digits than its factorization.

1165234061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43231.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1165234061 is about 34135.5249117397. The cubic root of 1165234061 is about 1052.2955253751.

Adding to 1165234061 its reverse (1604325611), we get a palindrome (2769559672).

The spelling of 1165234061 in words is "one billion, one hundred sixty-five million, two hundred thirty-four thousand, sixty-one".