102486161 has 4 divisors (see below), whose sum is σ = 104166324. Its totient is φ = 100806000.

The previous prime is 102486151. The next prime is 102486169. The reversal of 102486161 is 161684201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161684201 = 7 ⋅23097743.

It can be written as a sum of positive squares in 2 ways, for example, as 13542400 + 88943761 = 3680^2 + 9431^2 .

It is a cyclic number.

It is not a de Polignac number, because 102486161 - 2¹⁰ = 102485137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102486169) 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, 839990 + ... + 840111.

It is an arithmetic number, because the mean of its divisors is an integer number (26041581).

Almost surely, 2^102486161 is an apocalyptic number.

It is an amenable number.

102486161 is a deficient number, since it is larger than the sum of its proper divisors (1680163).

102486161 is an equidigital number, since it uses as much as digits as its factorization.

102486161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680162.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 102486161 is about 10123.5448830931. The cubic root of 102486161 is about 467.9740181475.

The spelling of 102486161 in words is "one hundred two million, four hundred eighty-six thousand, one hundred sixty-one".