135245139 has 8 divisors (see below), whose sum is σ = 180446160. Its totient is φ = 90103776.

The previous prime is 135245137. The next prime is 135245147. The reversal of 135245139 is 931542531.

135245139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135245139 - 2¹ = 135245137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135245137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9324 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (22555770).

Almost surely, 2^135245139 is an apocalyptic number.

135245139 is a deficient number, since it is larger than the sum of its proper divisors (45201021).

135245139 is a wasteful number, since it uses less digits than its factorization.

135245139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29829.

The product of its digits is 16200, while the sum is 33.

The square root of 135245139 is about 11629.4943570217. The cubic root of 135245139 is about 513.3031012817.

The spelling of 135245139 in words is "one hundred thirty-five million, two hundred forty-five thousand, one hundred thirty-nine".