101228730 has 16 divisors (see below), whose sum is σ = 242949024. Its totient is φ = 26994320.

The previous prime is 101228723. The next prime is 101228749. The reversal of 101228730 is 37822101.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101228730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687116 + ... + 1687175.

It is an arithmetic number, because the mean of its divisors is an integer number (15184314).

Almost surely, 2^101228730 is an apocalyptic number.

101228730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101228730 is an abundant number, since it is smaller than the sum of its proper divisors (141720294).

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

101228730 is a wasteful number, since it uses less digits than its factorization.

101228730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374301.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 101228730 is about 10061.2489284383. The cubic root of 101228730 is about 466.0522361578.

The spelling of 101228730 in words is "one hundred one million, two hundred twenty-eight thousand, seven hundred thirty".