136732161 has 16 divisors (see below), whose sum is σ = 184187520. Its totient is φ = 90220800.

The previous prime is 136732157. The next prime is 136732163. The reversal of 136732161 is 161237631.

It is not a de Polignac number, because 136732161 - 2² = 136732157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136732163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230281 + ... + 230873.

It is an arithmetic number, because the mean of its divisors is an integer number (11511720).

Almost surely, 2^136732161 is an apocalyptic number.

It is an amenable number.

136732161 is a deficient number, since it is larger than the sum of its proper divisors (47455359).

136732161 is a wasteful number, since it uses less digits than its factorization.

136732161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its digits is 4536, while the sum is 30.

The square root of 136732161 is about 11693.2527980883. The cubic root of 136732161 is about 515.1775062856.

Adding to 136732161 its reverse (161237631), we get a palindrome (297969792).

The spelling of 136732161 in words is "one hundred thirty-six million, seven hundred thirty-two thousand, one hundred sixty-one".