136100309 has 4 divisors (see below), whose sum is σ = 136362060. Its totient is φ = 135838560.

The previous prime is 136100299. The next prime is 136100353. The reversal of 136100309 is 903001631.

136100309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75603025 + 60497284 = 8695^2 + 7778^2 .

It is a cyclic number.

It is not a de Polignac number, because 136100309 - 2⁸ = 136100053 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 (136100359) 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, 130094 + ... + 131135.

It is an arithmetic number, because the mean of its divisors is an integer number (34090515).

Almost surely, 2^136100309 is an apocalyptic number.

It is an amenable number.

136100309 is a deficient number, since it is larger than the sum of its proper divisors (261751).

136100309 is an equidigital number, since it uses as much as digits as its factorization.

136100309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261750.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 136100309 is about 11666.2037098621. The cubic root of 136100309 is about 514.3827197490.

The spelling of 136100309 in words is "one hundred thirty-six million, one hundred thousand, three hundred nine".