102804161 has 2 divisors, whose sum is σ = 102804162. Its totient is φ = 102804160.

The previous prime is 102804133. The next prime is 102804203. The reversal of 102804161 is 161408201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73427761 + 29376400 = 8569^2 + 5420^2 .

It is a cyclic number.

It is not a de Polignac number, because 102804161 - 2¹⁰ = 102803137 is a prime.

It is not a weakly prime, because it can be changed into another prime (102804461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51402080 + 51402081.

It is an arithmetic number, because the mean of its divisors is an integer number (51402081).

Almost surely, 2^102804161 is an apocalyptic number.

It is an amenable number.

102804161 is a deficient number, since it is larger than the sum of its proper divisors (1).

102804161 is an equidigital number, since it uses as much as digits as its factorization.

102804161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 102804161 is about 10139.2386795065. The cubic root of 102804161 is about 468.4575373631.

It can be divided in two parts, 10280 and 4161, that added together give a palindrome (14441).

The spelling of 102804161 in words is "one hundred two million, eight hundred four thousand, one hundred sixty-one".