1161252205 has 8 divisors (see below), whose sum is σ = 1411142400. Its totient is φ = 917241936.

The previous prime is 1161252199. The next prime is 1161252217. The reversal of 1161252205 is 5022521611.

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 1161252205 - 2⁵ = 1161252173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161252205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1469545 + ... + 1470334.

It is an arithmetic number, because the mean of its divisors is an integer number (176392800).

Almost surely, 2^1161252205 is an apocalyptic number.

It is an amenable number.

1161252205 is a deficient number, since it is larger than the sum of its proper divisors (249890195).

1161252205 is an equidigital number, since it uses as much as digits as its factorization.

1161252205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939963.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1161252205 is about 34077.1507758498. The cubic root of 1161252205 is about 1051.0955172147.

Adding to 1161252205 its reverse (5022521611), we get a palindrome (6183773816).

The spelling of 1161252205 in words is "one billion, one hundred sixty-one million, two hundred fifty-two thousand, two hundred five".