135424505 has 4 divisors (see below), whose sum is σ = 162509412. Its totient is φ = 108339600.

The previous prime is 135424489. The next prime is 135424547. The reversal of 135424505 is 505424531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60964864 + 74459641 = 7808^2 + 8629^2 .

It is not a de Polignac number, because 135424505 - 2⁴ = 135424489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13542446 + ... + 13542455.

It is an arithmetic number, because the mean of its divisors is an integer number (40627353).

Almost surely, 2^135424505 is an apocalyptic number.

It is an amenable number.

135424505 is a deficient number, since it is larger than the sum of its proper divisors (27084907).

135424505 is an equidigital number, since it uses as much as digits as its factorization.

135424505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27084906.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 135424505 is about 11637.2034870926. The cubic root of 135424505 is about 513.5299201607.

The spelling of 135424505 in words is "one hundred thirty-five million, four hundred twenty-four thousand, five hundred five".