102223506 has 96 divisors (see below), whose sum is σ = 263608128. Its totient is φ = 26127360.

The previous prime is 102223493. The next prime is 102223507. The reversal of 102223506 is 605322201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (102223507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235866 + ... + 236298.

It is an arithmetic number, because the mean of its divisors is an integer number (2745918).

Almost surely, 2^102223506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102223506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131804064).

102223506 is an abundant number, since it is smaller than the sum of its proper divisors (161384622).

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

102223506 is a wasteful number, since it uses less digits than its factorization.

102223506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102223506 is about 10110.5640792193. The cubic root of 102223506 is about 467.5738962563.

Adding to 102223506 its reverse (605322201), we get a palindrome (707545707).

The spelling of 102223506 in words is "one hundred two million, two hundred twenty-three thousand, five hundred six".