102223254 has 32 divisors (see below), whose sum is σ = 234176256. Its totient is φ = 29141280.

The previous prime is 102223217. The next prime is 102223259. The reversal of 102223254 is 452322201.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102223254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102223259) 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, 18144 + ... + 23100.

It is an arithmetic number, because the mean of its divisors is an integer number (7318008).

Almost surely, 2^102223254 is an apocalyptic number.

102223254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102223254 is an abundant number, since it is smaller than the sum of its proper divisors (131953002).

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

102223254 is a wasteful number, since it uses less digits than its factorization.

102223254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 102223254 is about 10110.5516169989. The cubic root of 102223254 is about 467.5735120371.

Adding to 102223254 its reverse (452322201), we get a palindrome (554545455).

The spelling of 102223254 in words is "one hundred two million, two hundred twenty-three thousand, two hundred fifty-four".