135689002 has 8 divisors (see below), whose sum is σ = 215506116. Its totient is φ = 63853632.

The previous prime is 135688991. The next prime is 135689009. The reversal of 135689002 is 200986531.

135689002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 113230881 + 22458121 = 10641^2 + 4739^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 3990853 = 135689002 / (1 + 3 + 5 + 6 + 8 + 9 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (135689009) 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, 1995393 + ... + 1995460.

Almost surely, 2^135689002 is an apocalyptic number.

135689002 is a deficient number, since it is larger than the sum of its proper divisors (79817114).

135689002 is a wasteful number, since it uses less digits than its factorization.

135689002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990872.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 135689002 is about 11648.5622288761. The cubic root of 135689002 is about 513.8640270772.

The spelling of 135689002 in words is "one hundred thirty-five million, six hundred eighty-nine thousand, two".