135220672 has 28 divisors (see below), whose sum is σ = 269281656. Its totient is φ = 67370240.

The previous prime is 135220627. The next prime is 135220697. The reversal of 135220672 is 276022531.

It is a super-2 number, since 2×135220672² = 36569260272263168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135220672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15147 + ... + 22357.

It is an arithmetic number, because the mean of its divisors is an integer number (9617202).

Almost surely, 2^135220672 is an apocalyptic number.

It is an amenable number.

135220672 is a deficient number, since it is larger than the sum of its proper divisors (134060984).

135220672 is an equidigital number, since it uses as much as digits as its factorization.

135220672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 7506 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 135220672 is about 11628.4423720462. The cubic root of 135220672 is about 513.2721457775.

The spelling of 135220672 in words is "one hundred thirty-five million, two hundred twenty thousand, six hundred seventy-two".