135905672 has 16 divisors (see below), whose sum is σ = 291226560. Its totient is φ = 58245264.

The previous prime is 135905663. The next prime is 135905741. The reversal of 135905672 is 276509531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213388 + ... + 1213499.

It is an arithmetic number, because the mean of its divisors is an integer number (18201660).

Almost surely, 2^135905672 is an apocalyptic number.

It is an amenable number.

135905672 is an abundant number, since it is smaller than the sum of its proper divisors (155320888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135905672 is a wasteful number, since it uses less digits than its factorization.

135905672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426900 (or 2426896 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 135905672 is about 11657.8588085463. The cubic root of 135905672 is about 514.1373965892.

The spelling of 135905672 in words is "one hundred thirty-five million, nine hundred five thousand, six hundred seventy-two".