102223525 has 6 divisors (see below), whose sum is σ = 126757202. Its totient is φ = 81778800.

The previous prime is 102223507. The next prime is 102223559. The reversal of 102223525 is 525322201.

It can be written as a sum of positive squares in 3 ways, for example, as 26481316 + 75742209 = 5146^2 + 8703^2 .

It is not a de Polignac number, because 102223525 - 2⁵ = 102223493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102223496 and 102223505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2044446 + ... + 2044495.

Almost surely, 2^102223525 is an apocalyptic number.

It is an amenable number.

102223525 is a deficient number, since it is larger than the sum of its proper divisors (24533677).

102223525 is an equidigital number, since it uses as much as digits as its factorization.

102223525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088951 (or 4088946 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 102223525 is about 10110.5650188306. The cubic root of 102223525 is about 467.5739252252.

Adding to 102223525 its reverse (525322201), we get a palindrome (627545726).

The spelling of 102223525 in words is "one hundred two million, two hundred twenty-three thousand, five hundred twenty-five".