100146121 has 4 divisors (see below), whose sum is σ = 100234132. Its totient is φ = 100058112.

The previous prime is 100146119. The next prime is 100146157. The reversal of 100146121 is 121641001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58736896 + 41409225 = 7664^2 + 6435^2 .

It is a cyclic number.

It is not a de Polignac number, because 100146121 - 2¹ = 100146119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100146095 and 100146104.

It is not an unprimeable number, because it can be changed into a prime (100146181) 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, 42276 + ... + 44581.

It is an arithmetic number, because the mean of its divisors is an integer number (25058533).

Almost surely, 2^100146121 is an apocalyptic number.

It is an amenable number.

100146121 is a deficient number, since it is larger than the sum of its proper divisors (88011).

100146121 is an equidigital number, since it uses as much as digits as its factorization.

100146121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88010.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 100146121 is about 10007.3033830298. The cubic root of 100146121 is about 464.3848512022.

Adding to 100146121 its reverse (121641001), we get a palindrome (221787122).

The spelling of 100146121 in words is "one hundred million, one hundred forty-six thousand, one hundred twenty-one".