1161330529 has 2 divisors, whose sum is σ = 1161330530. Its totient is φ = 1161330528.

The previous prime is 1161330509. The next prime is 1161330641. The reversal of 1161330529 is 9250331611.

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., 1160424225 + 906304 = 34065^2 + 952^2 .

It is an emirp because it is prime and its reverse (9250331611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161330529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161330529.

It is not a weakly prime, because it can be changed into another prime (1161330509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580665264 + 580665265.

It is an arithmetic number, because the mean of its divisors is an integer number (580665265).

Almost surely, 2^1161330529 is an apocalyptic number.

It is an amenable number.

1161330529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161330529 is an equidigital number, since it uses as much as digits as its factorization.

1161330529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1161330529 is about 34078.2999722697. The cubic root of 1161330529 is about 1051.1191480717.

The spelling of 1161330529 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, five hundred twenty-nine".