1170606161 has 4 divisors (see below), whose sum is σ = 1170682212. Its totient is φ = 1170530112.

The previous prime is 1170606139. The next prime is 1170606163. The reversal of 1170606161 is 1616060711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 367450561 + 803155600 = 19169^2 + 28340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170606161 - 2¹⁸ = 1170344017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1170606163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5876 + ... + 48741.

It is an arithmetic number, because the mean of its divisors is an integer number (292670553).

Almost surely, 2^1170606161 is an apocalyptic number.

It is an amenable number.

1170606161 is a deficient number, since it is larger than the sum of its proper divisors (76051).

1170606161 is an equidigital number, since it uses as much as digits as its factorization.

1170606161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76050.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1170606161 is about 34214.1222450613. The cubic root of 1170606161 is about 1053.9101856768.

Adding to 1170606161 its reverse (1616060711), we get a palindrome (2786666872).

The spelling of 1170606161 in words is "one billion, one hundred seventy million, six hundred six thousand, one hundred sixty-one".