102345565 has 12 divisors (see below), whose sum is σ = 142866396. Its totient is φ = 70179648.

The previous prime is 102345563. The next prime is 102345583. The reversal of 102345565 is 565543201.

It can be written as a sum of positive squares in 2 ways, for example, as 26759929 + 75585636 = 5173^2 + 8694^2 .

It is not a de Polignac number, because 102345565 - 2¹ = 102345563 is a prime.

It is a super-2 number, since 2×102345565² = 20949229350338450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102345563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208624 + ... + 209113.

It is an arithmetic number, because the mean of its divisors is an integer number (11905533).

Almost surely, 2^102345565 is an apocalyptic number.

It is an amenable number.

102345565 is a deficient number, since it is larger than the sum of its proper divisors (40520831).

102345565 is an equidigital number, since it uses as much as digits as its factorization.

102345565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417756 (or 417749 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 102345565 is about 10116.5984896110. The cubic root of 102345565 is about 467.7599229483.

Adding to 102345565 its reverse (565543201), we get a palindrome (667888766).

The spelling of 102345565 in words is "one hundred two million, three hundred forty-five thousand, five hundred sixty-five".