100289161 has 4 divisors (see below), whose sum is σ = 114616192. Its totient is φ = 85962132.

The previous prime is 100289159. The next prime is 100289179. The reversal of 100289161 is 161982001.

It is a happy number.

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 100289161 - 2¹ = 100289159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100289141) 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, 7163505 + ... + 7163518.

It is an arithmetic number, because the mean of its divisors is an integer number (28654048).

Almost surely, 2^100289161 is an apocalyptic number.

It is an amenable number.

100289161 is a deficient number, since it is larger than the sum of its proper divisors (14327031).

100289161 is an equidigital number, since it uses as much as digits as its factorization.

100289161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14327030.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 100289161 is about 10014.4476133235. The cubic root of 100289161 is about 464.6058416509.

The spelling of 100289161 in words is "one hundred million, two hundred eighty-nine thousand, one hundred sixty-one".