102340215 has 24 divisors (see below), whose sum is σ = 181518480. Its totient is φ = 53311104.

The previous prime is 102340211. The next prime is 102340237. The reversal of 102340215 is 512043201.

It is not a de Polignac number, because 102340215 - 2² = 102340211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102340211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24510 + ... + 28379.

It is an arithmetic number, because the mean of its divisors is an integer number (7563270).

Almost surely, 2^102340215 is an apocalyptic number.

102340215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102340215 is a deficient number, since it is larger than the sum of its proper divisors (79178265).

102340215 is a wasteful number, since it uses less digits than its factorization.

102340215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52943 (or 52940 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102340215 is about 10116.3340692170. The cubic root of 102340215 is about 467.7517722639.

Adding to 102340215 its reverse (512043201), we get a palindrome (614383416).

The spelling of 102340215 in words is "one hundred two million, three hundred forty thousand, two hundred fifteen".