136899694 has 4 divisors (see below), whose sum is σ = 205349544. Its totient is φ = 68449846.

The previous prime is 136899661. The next prime is 136899701. The reversal of 136899694 is 496998631.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 34224922 + ... + 34224925.

It is an arithmetic number, because the mean of its divisors is an integer number (51337386).

Almost surely, 2^136899694 is an apocalyptic number.

136899694 is a deficient number, since it is larger than the sum of its proper divisors (68449850).

136899694 is an equidigital number, since it uses as much as digits as its factorization.

136899694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68449849.

The product of its digits is 2519424, while the sum is 55.

The square root of 136899694 is about 11700.4142661702. The cubic root of 136899694 is about 515.3878298992.

The spelling of 136899694 in words is "one hundred thirty-six million, eight hundred ninety-nine thousand, six hundred ninety-four".