135144515 has 16 divisors (see below), whose sum is σ = 179919360. Its totient is φ = 96618720.

The previous prime is 135144491. The next prime is 135144517. The reversal of 135144515 is 515441531.

It is not a de Polignac number, because 135144515 - 2²⁶ = 68035651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135144517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17579 + ... + 24068.

It is an arithmetic number, because the mean of its divisors is an integer number (11244960).

Almost surely, 2^135144515 is an apocalyptic number.

135144515 is a deficient number, since it is larger than the sum of its proper divisors (44774845).

135144515 is a wasteful number, since it uses less digits than its factorization.

135144515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41722.

The product of its digits is 6000, while the sum is 29.

The square root of 135144515 is about 11625.1673106240. The cubic root of 135144515 is about 513.1757684832.

The spelling of 135144515 in words is "one hundred thirty-five million, one hundred forty-four thousand, five hundred fifteen".