135245720 has 16 divisors (see below), whose sum is σ = 304302960. Its totient is φ = 54098272.

The previous prime is 135245701. The next prime is 135245791. The reversal of 135245720 is 27542531.

It is a happy number.

135245720 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, 1690532 + ... + 1690611.

It is an arithmetic number, because the mean of its divisors is an integer number (19018935).

Almost surely, 2^135245720 is an apocalyptic number.

135245720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135245720 is an abundant number, since it is smaller than the sum of its proper divisors (169057240).

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

135245720 is a wasteful number, since it uses less digits than its factorization.

135245720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381154 (or 3381150 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 135245720 is about 11629.5193365848. The cubic root of 135245720 is about 513.3038363141.

The spelling of 135245720 in words is "one hundred thirty-five million, two hundred forty-five thousand, seven hundred twenty".