100639201 has 8 divisors (see below), whose sum is σ = 114756264. Its totient is φ = 87432960.

The previous prime is 100639183. The next prime is 100639207. The reversal of 100639201 is 102936001.

It can be written as a sum of positive squares in 4 ways, for example, as 1437601 + 99201600 = 1199^2 + 9960^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100639201 - 2¹⁵ = 100606433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100639207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227470 + ... + 227911.

It is an arithmetic number, because the mean of its divisors is an integer number (14344533).

Almost surely, 2^100639201 is an apocalyptic number.

It is an amenable number.

100639201 is a deficient number, since it is larger than the sum of its proper divisors (14117063).

100639201 is a wasteful number, since it uses less digits than its factorization.

100639201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455411.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 100639201 is about 10031.9091403381. The cubic root of 100639201 is about 465.1457530529.

The spelling of 100639201 in words is "one hundred million, six hundred thirty-nine thousand, two hundred one".