135072705 has 16 divisors (see below), whose sum is σ = 217145664. Its totient is φ = 71695680.

The previous prime is 135072697. The next prime is 135072733. The reversal of 135072705 is 507270531.

It is not a de Polignac number, because 135072705 - 2³ = 135072697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18174 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (13571604).

Almost surely, 2^135072705 is an apocalyptic number.

135072705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135072705 is a deficient number, since it is larger than the sum of its proper divisors (82072959).

135072705 is a wasteful number, since it uses less digits than its factorization.

135072705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42896.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 135072705 is about 11622.0783425341. The cubic root of 135072705 is about 513.0848591804.

The spelling of 135072705 in words is "one hundred thirty-five million, seventy-two thousand, seven hundred five".