136280109 has 16 divisors (see below), whose sum is σ = 219881088. Its totient is φ = 73293312.

The previous prime is 136280101. The next prime is 136280117. The reversal of 136280109 is 901082631.

136280109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (136280101) and next prime (136280117).

It is not a de Polignac number, because 136280109 - 2³ = 136280101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136280101) 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, 190512 + ... + 191225.

It is an arithmetic number, because the mean of its divisors is an integer number (13742568).

Almost surely, 2^136280109 is an apocalyptic number.

It is an amenable number.

136280109 is a deficient number, since it is larger than the sum of its proper divisors (83600979).

136280109 is a wasteful number, since it uses less digits than its factorization.

136280109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381764.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 136280109 is about 11673.9071865421. The cubic root of 136280109 is about 514.6091344091.

The spelling of 136280109 in words is "one hundred thirty-six million, two hundred eighty thousand, one hundred nine".