136299838 has 4 divisors (see below), whose sum is σ = 204449760. Its totient is φ = 68149918.

The previous prime is 136299827. The next prime is 136299857. The reversal of 136299838 is 838992631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838992631 = 1019 ⋅823349.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 136299791 and 136299800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34074958 + ... + 34074961.

It is an arithmetic number, because the mean of its divisors is an integer number (51112440).

Almost surely, 2^136299838 is an apocalyptic number.

136299838 is a deficient number, since it is larger than the sum of its proper divisors (68149922).

136299838 is an equidigital number, since it uses as much as digits as its factorization.

136299838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68149921.

The product of its digits is 559872, while the sum is 49.

The square root of 136299838 is about 11674.7521601103. The cubic root of 136299838 is about 514.6339661907.

The spelling of 136299838 in words is "one hundred thirty-six million, two hundred ninety-nine thousand, eight hundred thirty-eight".