100404161 has 8 divisors (see below), whose sum is σ = 117957504. Its totient is φ = 84255120.

The previous prime is 100404137. The next prime is 100404163. The reversal of 100404161 is 161404001.

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 100404161 - 2²² = 96209857 is a prime.

It is a super-2 number, since 2×100404161² = 20161991092227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100404163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350921 + ... + 351206.

It is an arithmetic number, because the mean of its divisors is an integer number (14744688).

Almost surely, 2^100404161 is an apocalyptic number.

100404161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100404161 is a deficient number, since it is larger than the sum of its proper divisors (17553343).

100404161 is a wasteful number, since it uses less digits than its factorization.

100404161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702151.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 100404161 is about 10020.1876728932. The cubic root of 100404161 is about 464.7833592143.

Adding to 100404161 its reverse (161404001), we get a palindrome (261808162).

The spelling of 100404161 in words is "one hundred million, four hundred four thousand, one hundred sixty-one".