136632161 has 2 divisors, whose sum is σ = 136632162. Its totient is φ = 136632160.

The previous prime is 136632107. The next prime is 136632203. The reversal of 136632161 is 161236631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78872161 + 57760000 = 8881^2 + 7600^2 .

It is an emirp because it is prime and its reverse (161236631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136632161 - 2¹⁰ = 136631137 is a prime.

It is not a weakly prime, because it can be changed into another prime (136632361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68316080 + 68316081.

It is an arithmetic number, because the mean of its divisors is an integer number (68316081).

Almost surely, 2^136632161 is an apocalyptic number.

It is an amenable number.

136632161 is a deficient number, since it is larger than the sum of its proper divisors (1).

136632161 is an equidigital number, since it uses as much as digits as its factorization.

136632161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 136632161 is about 11688.9760458305. The cubic root of 136632161 is about 515.0518827926.

Adding to 136632161 its reverse (161236631), we get a palindrome (297868792).

The spelling of 136632161 in words is "one hundred thirty-six million, six hundred thirty-two thousand, one hundred sixty-one".