136394233 has 2 divisors, whose sum is σ = 136394234. Its totient is φ = 136394232.

The previous prime is 136394201. The next prime is 136394257. The reversal of 136394233 is 332493631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105513984 + 30880249 = 10272^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 136394233 - 2⁵ = 136394201 is a prime.

It is not a weakly prime, because it can be changed into another prime (136394263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68197116 + 68197117.

It is an arithmetic number, because the mean of its divisors is an integer number (68197117).

Almost surely, 2^136394233 is an apocalyptic number.

It is an amenable number.

136394233 is a deficient number, since it is larger than the sum of its proper divisors (1).

136394233 is an equidigital number, since it uses as much as digits as its factorization.

136394233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 34.

The square root of 136394233 is about 11678.7941586450. The cubic root of 136394233 is about 514.7527427150.

The spelling of 136394233 in words is "one hundred thirty-six million, three hundred ninety-four thousand, two hundred thirty-three".