135408015 has 24 divisors (see below), whose sum is σ = 244913760. Its totient is φ = 69077184.

The previous prime is 135408011. The next prime is 135408029. The reversal of 135408015 is 510804531.

135408015 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 135408015 - 2² = 135408011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135408015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135408011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64380 + ... + 66449.

It is an arithmetic number, because the mean of its divisors is an integer number (10204740).

Almost surely, 2^135408015 is an apocalyptic number.

135408015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135408015 is a deficient number, since it is larger than the sum of its proper divisors (109505745).

135408015 is a wasteful number, since it uses less digits than its factorization.

135408015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130863 (or 130860 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 135408015 is about 11636.4949619720. The cubic root of 135408015 is about 513.5090759467.

The spelling of 135408015 in words is "one hundred thirty-five million, four hundred eight thousand, fifteen".