135539974 has 16 divisors (see below), whose sum is σ = 209064240. Its totient is φ = 65875680.

The previous prime is 135539959. The next prime is 135539981. The reversal of 135539974 is 479935531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689 + ... + 17419.

It is an arithmetic number, because the mean of its divisors is an integer number (13066515).

Almost surely, 2^135539974 is an apocalyptic number.

135539974 is a deficient number, since it is larger than the sum of its proper divisors (73524266).

135539974 is a wasteful number, since it uses less digits than its factorization.

135539974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11895.

The product of its digits is 510300, while the sum is 46.

The square root of 135539974 is about 11642.1636305285. The cubic root of 135539974 is about 513.6758315704.

The spelling of 135539974 in words is "one hundred thirty-five million, five hundred thirty-nine thousand, nine hundred seventy-four".