135308207 has 4 divisors (see below), whose sum is σ = 135436560. Its totient is φ = 135179856.

The previous prime is 135308203. The next prime is 135308209. The reversal of 135308207 is 702803531.

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

It is a cyclic number.

It is not a de Polignac number, because 135308207 - 2² = 135308203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135308207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135308203) 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, 62582 + ... + 64707.

It is an arithmetic number, because the mean of its divisors is an integer number (33859140).

Almost surely, 2^135308207 is an apocalyptic number.

135308207 is a deficient number, since it is larger than the sum of its proper divisors (128353).

135308207 is a wasteful number, since it uses less digits than its factorization.

135308207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128352.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 135308207 is about 11632.2055948130. The cubic root of 135308207 is about 513.3828773324.

The spelling of 135308207 in words is "one hundred thirty-five million, three hundred eight thousand, two hundred seven".