135924728 has 8 divisors (see below), whose sum is σ = 254858880. Its totient is φ = 67962360.

The previous prime is 135924721. The next prime is 135924749. The reversal of 135924728 is 827429531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135924721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8495288 + ... + 8495303.

It is an arithmetic number, because the mean of its divisors is an integer number (31857360).

Almost surely, 2^135924728 is an apocalyptic number.

It is an amenable number.

135924728 is a deficient number, since it is larger than the sum of its proper divisors (118934152).

135924728 is a wasteful number, since it uses less digits than its factorization.

135924728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16990597 (or 16990593 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 135924728 is about 11658.6760826433. The cubic root of 135924728 is about 514.1614253737.

The spelling of 135924728 in words is "one hundred thirty-five million, nine hundred twenty-four thousand, seven hundred twenty-eight".