102315224 has 32 divisors (see below), whose sum is σ = 218384640. Its totient is φ = 44484000.

The previous prime is 102315223. The next prime is 102315229. The reversal of 102315224 is 422513201.

It is a junction number, because it is equal to n+sod(n) for n = 102315196 and 102315205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102315223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23252 + ... + 27299.

It is an arithmetic number, because the mean of its divisors is an integer number (6824520).

Almost surely, 2^102315224 is an apocalyptic number.

It is an amenable number.

102315224 is an abundant number, since it is smaller than the sum of its proper divisors (116069416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102315224 is a wasteful number, since it uses less digits than its factorization.

102315224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50591 (or 50587 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102315224 is about 10115.0988131605. The cubic root of 102315224 is about 467.7136949021.

Adding to 102315224 its reverse (422513201), we get a palindrome (524828425).

The spelling of 102315224 in words is "one hundred two million, three hundred fifteen thousand, two hundred twenty-four".