136268638 has 8 divisors (see below), whose sum is σ = 222985080. Its totient is φ = 61940280.

The previous prime is 136268611. The next prime is 136268641. The reversal of 136268638 is 836862631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 136268594 and 136268603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096993 + ... + 3097036.

It is an arithmetic number, because the mean of its divisors is an integer number (27873135).

Almost surely, 2^136268638 is an apocalyptic number.

136268638 is a deficient number, since it is larger than the sum of its proper divisors (86716442).

136268638 is a wasteful number, since it uses less digits than its factorization.

136268638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194042.

The product of its digits is 248832, while the sum is 43.

The square root of 136268638 is about 11673.4158668318. The cubic root of 136268638 is about 514.5946954053.

The spelling of 136268638 in words is "one hundred thirty-six million, two hundred sixty-eight thousand, six hundred thirty-eight".