100204193 has 4 divisors (see below), whose sum is σ = 103659540. Its totient is φ = 96748848.

The previous prime is 100204187. The next prime is 100204199. The reversal of 100204193 is 391402001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391402001 = 31 ⋅12625871.

It is an interprime number because it is at equal distance from previous prime (100204187) and next prime (100204199).

It can be written as a sum of positive squares in 2 ways, for example, as 26450449 + 73753744 = 5143^2 + 8588^2 .

It is a cyclic number.

It is not a de Polignac number, because 100204193 - 2²⁶ = 33095329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100204199) 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 3 ways as a sum of consecutive naturals, for example, 1727630 + ... + 1727687.

It is an arithmetic number, because the mean of its divisors is an integer number (25914885).

Almost surely, 2^100204193 is an apocalyptic number.

It is an amenable number.

100204193 is a deficient number, since it is larger than the sum of its proper divisors (3455347).

100204193 is an equidigital number, since it uses as much as digits as its factorization.

100204193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455346.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 100204193 is about 10010.2044434667. The cubic root of 100204193 is about 464.4745952211.

Adding to 100204193 its reverse (391402001), we get a palindrome (491606194).

The spelling of 100204193 in words is "one hundred million, two hundred four thousand, one hundred ninety-three".