136994507 has 4 divisors (see below), whose sum is σ = 147532560. Its totient is φ = 126456456.

The previous prime is 136994497. The next prime is 136994527. The reversal of 136994507 is 705499631.

136994507 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 136994507 - 2⁸ = 136994251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136994527) 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, 5269007 + ... + 5269032.

It is an arithmetic number, because the mean of its divisors is an integer number (36883140).

Almost surely, 2^136994507 is an apocalyptic number.

136994507 is a deficient number, since it is larger than the sum of its proper divisors (10538053).

136994507 is a wasteful number, since it uses less digits than its factorization.

136994507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538052.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 136994507 is about 11704.4652590368. The cubic root of 136994507 is about 515.5067836341.

The spelling of 136994507 in words is "one hundred thirty-six million, nine hundred ninety-four thousand, five hundred seven".