1161573211 has 2 divisors, whose sum is σ = 1161573212. Its totient is φ = 1161573210.

The previous prime is 1161573199. The next prime is 1161573239. The reversal of 1161573211 is 1123751611.

It is an a-pointer prime, because the next prime (1161573239) can be obtained adding 1161573211 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (1123751611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161573211 - 2¹¹ = 1161571163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161573211.

It is not a weakly prime, because it can be changed into another prime (1161573241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580786605 + 580786606.

It is an arithmetic number, because the mean of its divisors is an integer number (580786606).

Almost surely, 2^1161573211 is an apocalyptic number.

1161573211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161573211 is an equidigital number, since it uses as much as digits as its factorization.

1161573211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 28.

The square root of 1161573211 is about 34081.8604392425. The cubic root of 1161573211 is about 1051.1923600541.

The spelling of 1161573211 in words is "one billion, one hundred sixty-one million, five hundred seventy-three thousand, two hundred eleven".