135424815 has 16 divisors (see below), whose sum is σ = 216826368. Its totient is φ = 72177696.

The previous prime is 135424811. The next prime is 135424823. The reversal of 135424815 is 518424531.

It is not a de Polignac number, because 135424815 - 2² = 135424811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135424811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35742 + ... + 39348.

It is an arithmetic number, because the mean of its divisors is an integer number (13551648).

Almost surely, 2^135424815 is an apocalyptic number.

135424815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135424815 is a deficient number, since it is larger than the sum of its proper divisors (81401553).

135424815 is a wasteful number, since it uses less digits than its factorization.

135424815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118.

The product of its digits is 19200, while the sum is 33.

The square root of 135424815 is about 11637.2168064362. The cubic root of 135424815 is about 513.5303120006.

The spelling of 135424815 in words is "one hundred thirty-five million, four hundred twenty-four thousand, eight hundred fifteen".