101270728 has 16 divisors (see below), whose sum is σ = 204489180. Its totient is φ = 46740288.

The previous prime is 101270723. The next prime is 101270731. The reversal of 101270728 is 827072101.

It can be written as a sum of positive squares in 2 ways, for example, as 98843364 + 2427364 = 9942^2 + 1558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101270696 and 101270705.

It is not an unprimeable number, because it can be changed into a prime (101270723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486775 + ... + 486982.

Almost surely, 2^101270728 is an apocalyptic number.

It is an amenable number.

101270728 is an abundant number, since it is smaller than the sum of its proper divisors (103218452).

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

101270728 is a wasteful number, since it uses less digits than its factorization.

101270728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973776 (or 973772 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 101270728 is about 10063.3358286405. The cubic root of 101270728 is about 466.1166795083.

The spelling of 101270728 in words is "one hundred one million, two hundred seventy thousand, seven hundred twenty-eight".