1161422013 has 8 divisors (see below), whose sum is σ = 1549469376. Its totient is φ = 773828000.

The previous prime is 1161422011. The next prime is 1161422039. The reversal of 1161422013 is 3102241611.

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 1161422013 - 2¹ = 1161422011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161422011) by changing a digit.

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, 107313 + ... + 117638.

It is an arithmetic number, because the mean of its divisors is an integer number (193683672).

Almost surely, 2^1161422013 is an apocalyptic number.

It is an amenable number.

1161422013 is a deficient number, since it is larger than the sum of its proper divisors (388047363).

1161422013 is a wasteful number, since it uses less digits than its factorization.

1161422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226675.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1161422013 is about 34079.6422076289. The cubic root of 1161422013 is about 1051.1467480406.

Adding to 1161422013 its reverse (3102241611), we get a palindrome (4263663624).

The spelling of 1161422013 in words is "one billion, one hundred sixty-one million, four hundred twenty-two thousand, thirteen".