102166345 has 16 divisors (see below), whose sum is σ = 135457920. Its totient is φ = 73579264.

The previous prime is 102166331. The next prime is 102166349. The reversal of 102166345 is 543661201.

It is not a de Polignac number, because 102166345 - 2⁵ = 102166313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102166349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24175 + ... + 28084.

It is an arithmetic number, because the mean of its divisors is an integer number (8466120).

Almost surely, 2^102166345 is an apocalyptic number.

It is an amenable number.

102166345 is a deficient number, since it is larger than the sum of its proper divisors (33291575).

102166345 is a wasteful number, since it uses less digits than its factorization.

102166345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52304.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 102166345 is about 10107.7368881466. The cubic root of 102166345 is about 467.4867278682.

It can be divided in two parts, 10216 and 6345, that added together give a palindrome (16561).

The spelling of 102166345 in words is "one hundred two million, one hundred sixty-six thousand, three hundred forty-five".