136726723 has 8 divisors (see below), whose sum is σ = 157642848. Its totient is φ = 116156544.

The previous prime is 136726703. The next prime is 136726727. The reversal of 136726723 is 327627631.

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

It is a de Polignac number, because none of the positive numbers 2^k-136726723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136726727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85636 + ... + 87217.

It is an arithmetic number, because the mean of its divisors is an integer number (19705356).

Almost surely, 2^136726723 is an apocalyptic number.

136726723 is a deficient number, since it is larger than the sum of its proper divisors (20916125).

136726723 is a wasteful number, since it uses less digits than its factorization.

136726723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172973.

The product of its digits is 63504, while the sum is 37.

The square root of 136726723 is about 11693.0202685192. The cubic root of 136726723 is about 515.1706764552.

The spelling of 136726723 in words is "one hundred thirty-six million, seven hundred twenty-six thousand, seven hundred twenty-three".