135447772 has 12 divisors (see below), whose sum is σ = 250976880. Its totient is φ = 63740096.

The previous prime is 135447733. The next prime is 135447797. The reversal of 135447772 is 277744531.

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, 995872 + ... + 996007.

It is an arithmetic number, because the mean of its divisors is an integer number (20914740).

Almost surely, 2^135447772 is an apocalyptic number.

It is an amenable number.

135447772 is a deficient number, since it is larger than the sum of its proper divisors (115529108).

135447772 is a wasteful number, since it uses less digits than its factorization.

135447772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991900 (or 1991898 counting only the distinct ones).

The product of its digits is 164640, while the sum is 40.

The square root of 135447772 is about 11638.2031259125. The cubic root of 135447772 is about 513.5593279759.

It can be divided in two parts, 13544 and 7772, that added together give a square (21316 = 146²).

The spelling of 135447772 in words is "one hundred thirty-five million, four hundred forty-seven thousand, seven hundred seventy-two".