135489765 has 16 divisors (see below), whose sum is σ = 217093248. Its totient is φ = 72158016.

The previous prime is 135489751. The next prime is 135489787. The reversal of 135489765 is 567984531.

It is not a de Polignac number, because 135489765 - 2⁷ = 135489637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5067 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (13568328).

Almost surely, 2^135489765 is an apocalyptic number.

135489765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135489765 is a deficient number, since it is larger than the sum of its proper divisors (81603483).

135489765 is a wasteful number, since it uses less digits than its factorization.

135489765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908.

The product of its digits is 907200, while the sum is 48.

The square root of 135489765 is about 11640.0070876267. The cubic root of 135489765 is about 513.6123955857.

It can be divided in two parts, 1354 and 89765, that added together give a palindrome (91119).

The spelling of 135489765 in words is "one hundred thirty-five million, four hundred eighty-nine thousand, seven hundred sixty-five".