1162626161 has 4 divisors (see below), whose sum is σ = 1170325824. Its totient is φ = 1154926500.

The previous prime is 1162626137. The next prime is 1162626191. The reversal of 1162626161 is 1616262611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1162626161 - 2⁶ = 1162626097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1162626191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3849605 + ... + 3849906.

It is an arithmetic number, because the mean of its divisors is an integer number (292581456).

Almost surely, 2^1162626161 is an apocalyptic number.

It is an amenable number.

1162626161 is a deficient number, since it is larger than the sum of its proper divisors (7699663).

1162626161 is an equidigital number, since it uses as much as digits as its factorization.

1162626161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699662.

The product of its digits is 5184, while the sum is 32.

The square root of 1162626161 is about 34097.3043069390. The cubic root of 1162626161 is about 1051.5098945566.

Adding to 1162626161 its reverse (1616262611), we get a palindrome (2778888772).

The spelling of 1162626161 in words is "one billion, one hundred sixty-two million, six hundred twenty-six thousand, one hundred sixty-one".