135224015 has 32 divisors (see below), whose sum is σ = 177278976. Its totient is φ = 98714880.

The previous prime is 135224003. The next prime is 135224021. The reversal of 135224015 is 510422531.

It is not a de Polignac number, because 135224015 - 2²⁰ = 134175439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295667 + ... + 296123.

It is an arithmetic number, because the mean of its divisors is an integer number (5539968).

Almost surely, 2^135224015 is an apocalyptic number.

135224015 is a deficient number, since it is larger than the sum of its proper divisors (42054961).

135224015 is a wasteful number, since it uses less digits than its factorization.

135224015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 135224015 is about 11628.5861135393. The cubic root of 135224015 is about 513.2763755417.

Adding to 135224015 its reverse (510422531), we get a palindrome (645646546).

The spelling of 135224015 in words is "one hundred thirty-five million, two hundred twenty-four thousand, fifteen".