136123199 has 8 divisors (see below), whose sum is σ = 144303840. Its totient is φ = 127961856.

The previous prime is 136123171. The next prime is 136123243. The reversal of 136123199 is 991321631.

136123199 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 de Polignac number, because none of the positive numbers 2^k-136123199 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 (136123109) 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, 11267 + ... + 19979.

It is an arithmetic number, because the mean of its divisors is an integer number (18037980).

Almost surely, 2^136123199 is an apocalyptic number.

136123199 is a deficient number, since it is larger than the sum of its proper divisors (8180641).

136123199 is an equidigital number, since it uses as much as digits as its factorization.

136123199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9649.

The product of its digits is 8748, while the sum is 35.

The square root of 136123199 is about 11667.1847075462. The cubic root of 136123199 is about 514.4115552467.

The spelling of 136123199 in words is "one hundred thirty-six million, one hundred twenty-three thousand, one hundred ninety-nine".