102104161 has 4 divisors (see below), whose sum is σ = 103834800. Its totient is φ = 100373524.

The previous prime is 102104143. The next prime is 102104183. The reversal of 102104161 is 161401201.

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: 161401201 = 13 ⋅12415477.

It is a cyclic number.

It is not a de Polignac number, because 102104161 - 2²¹ = 100007009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102104861) 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, 865231 + ... + 865348.

It is an arithmetic number, because the mean of its divisors is an integer number (25958700).

Almost surely, 2^102104161 is an apocalyptic number.

It is an amenable number.

102104161 is a deficient number, since it is larger than the sum of its proper divisors (1730639).

102104161 is an equidigital number, since it uses as much as digits as its factorization.

102104161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730638.

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

The square root of 102104161 is about 10104.6603604475. The cubic root of 102104161 is about 467.3918626606.

Adding to 102104161 its reverse (161401201), we get a palindrome (263505362).

The spelling of 102104161 in words is "one hundred two million, one hundred four thousand, one hundred sixty-one".