136320943 has 16 divisors (see below), whose sum is σ = 159376896. Its totient is φ = 115219840.

The previous prime is 136320917. The next prime is 136320971. The reversal of 136320943 is 349023631.

It is a cyclic number.

It is not a de Polignac number, because 136320943 - 2²⁵ = 102766511 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 (136320973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11130 + ... + 19912.

It is an arithmetic number, because the mean of its divisors is an integer number (9961056).

Almost surely, 2^136320943 is an apocalyptic number.

136320943 is a deficient number, since it is larger than the sum of its proper divisors (23055953).

136320943 is a wasteful number, since it uses less digits than its factorization.

136320943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8894.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 136320943 is about 11675.6559987009. The cubic root of 136320943 is about 514.6605272135.

The spelling of 136320943 in words is "one hundred thirty-six million, three hundred twenty thousand, nine hundred forty-three".