102118571 has 4 divisors (see below), whose sum is σ = 102682944. Its totient is φ = 101554200.

The previous prime is 102118547. The next prime is 102118573. The reversal of 102118571 is 175811201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175811201 = 1493 ⋅117757.

It is a cyclic number.

It is not a de Polignac number, because 102118571 - 2¹⁸ = 101856427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102118571.

It is not an unprimeable number, because it can be changed into a prime (102118573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281915 + ... + 282276.

It is an arithmetic number, because the mean of its divisors is an integer number (25670736).

Almost surely, 2^102118571 is an apocalyptic number.

102118571 is a deficient number, since it is larger than the sum of its proper divisors (564373).

102118571 is an equidigital number, since it uses as much as digits as its factorization.

102118571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564372.

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 102118571 is about 10105.3733726172. The cubic root of 102118571 is about 467.4138493582.

Adding to 102118571 its reverse (175811201), we get a palindrome (277929772).

The spelling of 102118571 in words is "one hundred two million, one hundred eighteen thousand, five hundred seventy-one".