135021300 has 36 divisors (see below), whose sum is σ = 390662496. Its totient is φ = 36005600.

The previous prime is 135021269. The next prime is 135021373. The reversal of 135021300 is 3120531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 135021300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224736 + ... + 225335.

It is an arithmetic number, because the mean of its divisors is an integer number (10851736).

Almost surely, 2^135021300 is an apocalyptic number.

135021300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135021300 is an abundant number, since it is smaller than the sum of its proper divisors (255641196).

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

135021300 is a wasteful number, since it uses less digits than its factorization.

135021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450088 (or 450081 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 135021300 is about 11619.8666085287. The cubic root of 135021300 is about 513.0197622047.

Adding to 135021300 its reverse (3120531), we get a palindrome (138141831).

The spelling of 135021300 in words is "one hundred thirty-five million, twenty-one thousand, three hundred".