72135260 has 12 divisors (see below), whose sum is σ = 151484088. Its totient is φ = 28854096.

The previous prime is 72135253. The next prime is 72135269. The reversal of 72135260 is 6253127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72135269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803362 + ... + 1803401.

It is an arithmetic number, because the mean of its divisors is an integer number (12623674).

Almost surely, 2^72135260 is an apocalyptic number.

It is an amenable number.

72135260 is an abundant number, since it is smaller than the sum of its proper divisors (79348828).

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

72135260 is a wasteful number, since it uses less digits than its factorization.

72135260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606772 (or 3606770 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72135260 is about 8493.2479064254. The cubic root of 72135260 is about 416.2771128861.

Adding to 72135260 its reverse (6253127), we get a palindrome (78388387).

The spelling of 72135260 in words is "seventy-two million, one hundred thirty-five thousand, two hundred sixty".