102161563 has 4 divisors (see below), whose sum is σ = 116756080. Its totient is φ = 87567048.

The previous prime is 102161557. The next prime is 102161569. The reversal of 102161563 is 365161201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365161201 = 139 ⋅2627059.

It is an interprime number because it is at equal distance from previous prime (102161557) and next prime (102161569).

It is a cyclic number.

It is not a de Polignac number, because 102161563 - 2⁵ = 102161531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102161569) 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, 7297248 + ... + 7297261.

It is an arithmetic number, because the mean of its divisors is an integer number (29189020).

Almost surely, 2^102161563 is an apocalyptic number.

102161563 is a deficient number, since it is larger than the sum of its proper divisors (14594517).

102161563 is an equidigital number, since it uses as much as digits as its factorization.

102161563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14594516.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 102161563 is about 10107.5003339105. The cubic root of 102161563 is about 467.4794340234.

The spelling of 102161563 in words is "one hundred two million, one hundred sixty-one thousand, five hundred sixty-three".