736131161 has 4 divisors (see below), whose sum is σ = 779433012. Its totient is φ = 692829312.

The previous prime is 736131119. The next prime is 736131167. The reversal of 736131161 is 161131637.

736131161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161131637 = 227 ⋅709831.

It can be written as a sum of positive squares in 2 ways, for example, as 568584025 + 167547136 = 23845^2 + 12944^2 .

It is a cyclic number.

It is not a de Polignac number, because 736131161 - 2²² = 731936857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (736131167) 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, 21650900 + ... + 21650933.

It is an arithmetic number, because the mean of its divisors is an integer number (194858253).

Almost surely, 2^736131161 is an apocalyptic number.

It is an amenable number.

736131161 is a deficient number, since it is larger than the sum of its proper divisors (43301851).

736131161 is a wasteful number, since it uses less digits than its factorization.

736131161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43301850.

The product of its digits is 2268, while the sum is 29.

The square root of 736131161 is about 27131.7371541153. The cubic root of 736131161 is about 902.9251168472.

Adding to 736131161 its reverse (161131637), we get a palindrome (897262798).

The spelling of 736131161 in words is "seven hundred thirty-six million, one hundred thirty-one thousand, one hundred sixty-one".