3820100225 has 6 divisors (see below), whose sum is σ = 4736924310. Its totient is φ = 3056080160.

The previous prime is 3820100213. The next prime is 3820100267. The reversal of 3820100225 is 5220010283.

It can be written as a sum of positive squares in 3 ways, for example, as 17774656 + 3802325569 = 4216^2 + 61663^2 .

It is not a de Polignac number, because 3820100225 - 2¹⁰ = 3820099201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3820100225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76401980 + ... + 76402029.

It is an arithmetic number, because the mean of its divisors is an integer number (789487385).

Almost surely, 2^3820100225 is an apocalyptic number.

It is an amenable number.

3820100225 is a deficient number, since it is larger than the sum of its proper divisors (916824085).

3820100225 is a wasteful number, since it uses less digits than its factorization.

3820100225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152804019 (or 152804014 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3820100225 is about 61806.9593573410. The cubic root of 3820100225 is about 1563.2373360534.

The spelling of 3820100225 in words is "three billion, eight hundred twenty million, one hundred thousand, two hundred twenty-five".