135283638 has 32 divisors (see below), whose sum is σ = 309703680. Its totient is φ = 38592000.

The previous prime is 135283627. The next prime is 135283639. The reversal of 135283638 is 836382531.

It is a junction number, because it is equal to n+sod(n) for n = 135283596 and 135283605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135283639) 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, 29398 + ... + 33686.

It is an arithmetic number, because the mean of its divisors is an integer number (9678240).

Almost surely, 2^135283638 is an apocalyptic number.

135283638 is an abundant number, since it is smaller than the sum of its proper divisors (174420042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135283638 is a wasteful number, since it uses less digits than its factorization.

135283638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052.

The product of its digits is 103680, while the sum is 39.

The square root of 135283638 is about 11631.1494702802. The cubic root of 135283638 is about 513.3518024314.

The spelling of 135283638 in words is "one hundred thirty-five million, two hundred eighty-three thousand, six hundred thirty-eight".