100700161 has 4 divisors (see below), whose sum is σ = 101641392. Its totient is φ = 99758932.

The previous prime is 100700147. The next prime is 100700167. The reversal of 100700161 is 161007001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 161007001 = 9257 ⋅17393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100700161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100700167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470455 + ... + 470668.

It is an arithmetic number, because the mean of its divisors is an integer number (25410348).

Almost surely, 2^100700161 is an apocalyptic number.

It is an amenable number.

100700161 is a deficient number, since it is larger than the sum of its proper divisors (941231).

100700161 is an equidigital number, since it uses as much as digits as its factorization.

100700161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941230.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 100700161 is about 10034.9469854105. The cubic root of 100700161 is about 465.2396513932.

Adding to 100700161 its reverse (161007001), we get a palindrome (261707162).

The spelling of 100700161 in words is "one hundred million, seven hundred thousand, one hundred sixty-one".