136394207 has 4 divisors (see below), whose sum is σ = 137645640. Its totient is φ = 135142776.

The previous prime is 136394201. The next prime is 136394233. The reversal of 136394207 is 702493631.

136394207 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.

It is a cyclic number.

It is not a de Polignac number, because 136394207 - 2⁶ = 136394143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136394201) 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, 625553 + ... + 625770.

It is an arithmetic number, because the mean of its divisors is an integer number (34411410).

Almost surely, 2^136394207 is an apocalyptic number.

136394207 is a deficient number, since it is larger than the sum of its proper divisors (1251433).

136394207 is a wasteful number, since it uses less digits than its factorization.

136394207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251432.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 136394207 is about 11678.7930455163. The cubic root of 136394207 is about 514.7527100069.

The spelling of 136394207 in words is "one hundred thirty-six million, three hundred ninety-four thousand, two hundred seven".