136742623 has 8 divisors (see below), whose sum is σ = 140656208. Its totient is φ = 132862464.

The previous prime is 136742621. The next prime is 136742629. The reversal of 136742623 is 326247631.

136742623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 136742623 - 2¹ = 136742621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136742621) 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, 61 + ... + 16537.

It is an arithmetic number, because the mean of its divisors is an integer number (17582026).

Almost surely, 2^136742623 is an apocalyptic number.

136742623 is a deficient number, since it is larger than the sum of its proper divisors (3913585).

136742623 is a wasteful number, since it uses less digits than its factorization.

136742623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16713.

The product of its digits is 36288, while the sum is 34.

The square root of 136742623 is about 11693.7001415292. The cubic root of 136742623 is about 515.1906454758.

The spelling of 136742623 in words is "one hundred thirty-six million, seven hundred forty-two thousand, six hundred twenty-three".