135124040 has 32 divisors (see below), whose sum is σ = 313839360. Its totient is φ = 52305600.

The previous prime is 135124039. The next prime is 135124061. The reversal of 135124040 is 40421531.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53246 + ... + 55725.

It is an arithmetic number, because the mean of its divisors is an integer number (9807480).

Almost surely, 2^135124040 is an apocalyptic number.

135124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135124040 is an abundant number, since it is smaller than the sum of its proper divisors (178715320).

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

135124040 is a wasteful number, since it uses less digits than its factorization.

135124040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109013 (or 109009 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 135124040 is about 11624.2866447795. The cubic root of 135124040 is about 513.1498510309.

Adding to 135124040 its reverse (40421531), we get a palindrome (175545571).

The spelling of 135124040 in words is "one hundred thirty-five million, one hundred twenty-four thousand, forty".