136601843 has 4 divisors (see below), whose sum is σ = 156116400. Its totient is φ = 117087288.

The previous prime is 136601827. The next prime is 136601879. The reversal of 136601843 is 348106631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348106631 = 107 ⋅3253333.

It is a cyclic number.

It is not a de Polignac number, because 136601843 - 2⁴ = 136601827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136601813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9757268 + ... + 9757281.

It is an arithmetic number, because the mean of its divisors is an integer number (39029100).

Almost surely, 2^136601843 is an apocalyptic number.

136601843 is a deficient number, since it is larger than the sum of its proper divisors (19514557).

136601843 is an equidigital number, since it uses as much as digits as its factorization.

136601843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19514556.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 136601843 is about 11687.6791109270. The cubic root of 136601843 is about 515.0137841536.

The spelling of 136601843 in words is "one hundred thirty-six million, six hundred one thousand, eight hundred forty-three".