135253240 has 16 divisors (see below), whose sum is σ = 304319880. Its totient is φ = 54101280.

The previous prime is 135253201. The next prime is 135253253. The reversal of 135253240 is 42352531.

135253240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690626 + ... + 1690705.

Almost surely, 2^135253240 is an apocalyptic number.

135253240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135253240 is an abundant number, since it is smaller than the sum of its proper divisors (169066640).

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

135253240 is a wasteful number, since it uses less digits than its factorization.

135253240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381342 (or 3381338 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 135253240 is about 11629.8426472588. The cubic root of 135253240 is about 513.3133497965.

The spelling of 135253240 in words is "one hundred thirty-five million, two hundred fifty-three thousand, two hundred forty".