100232161 has 4 divisors (see below), whose sum is σ = 100997424. Its totient is φ = 99466900.

The previous prime is 100232159. The next prime is 100232177. The reversal of 100232161 is 161232001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100232161 - 2¹ = 100232159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100232261) 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, 382435 + ... + 382696.

It is an arithmetic number, because the mean of its divisors is an integer number (25249356).

Almost surely, 2^100232161 is an apocalyptic number.

It is an amenable number.

100232161 is a deficient number, since it is larger than the sum of its proper divisors (765263).

100232161 is an equidigital number, since it uses as much as digits as its factorization.

100232161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765262.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 100232161 is about 10011.6013204682. The cubic root of 100232161 is about 464.5178043813.

Adding to 100232161 its reverse (161232001), we get a palindrome (261464162).

The spelling of 100232161 in words is "one hundred million, two hundred thirty-two thousand, one hundred sixty-one".