136532093 has 4 divisors (see below), whose sum is σ = 136613148. Its totient is φ = 136451040.

The previous prime is 136532089. The next prime is 136532111. The reversal of 136532093 is 390235631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390235631 = 1489 ⋅262079.

It can be written as a sum of positive squares in 2 ways, for example, as 82391929 + 54140164 = 9077^2 + 7358^2 .

It is a cyclic number.

It is not a de Polignac number, because 136532093 - 2² = 136532089 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 (136532003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37946 + ... + 41387.

It is an arithmetic number, because the mean of its divisors is an integer number (34153287).

Almost surely, 2^136532093 is an apocalyptic number.

It is an amenable number.

136532093 is a deficient number, since it is larger than the sum of its proper divisors (81055).

136532093 is an equidigital number, since it uses as much as digits as its factorization.

136532093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81054.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 136532093 is about 11684.6948184366. The cubic root of 136532093 is about 514.9261125028.

The spelling of 136532093 in words is "one hundred thirty-six million, five hundred thirty-two thousand, ninety-three".