15230225 has 6 divisors (see below), whose sum is σ = 18885510. Its totient is φ = 12184160.

The previous prime is 15230219. The next prime is 15230263. The reversal of 15230225 is 52203251.

It can be written as a sum of positive squares in 3 ways, for example, as 3444736 + 11785489 = 1856^2 + 3433^2 .

It is not a de Polignac number, because 15230225 - 2⁶ = 15230161 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 15230197 and 15230206.

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, 304580 + ... + 304629.

It is an arithmetic number, because the mean of its divisors is an integer number (3147585).

Almost surely, 2^15230225 is an apocalyptic number.

It is an amenable number.

15230225 is a deficient number, since it is larger than the sum of its proper divisors (3655285).

15230225 is an equidigital number, since it uses as much as digits as its factorization.

15230225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609219 (or 609214 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 15230225 is about 3902.5920873184. The cubic root of 15230225 is about 247.8765482086.

Adding to 15230225 its reverse (52203251), we get a palindrome (67433476).

The spelling of 15230225 in words is "fifteen million, two hundred thirty thousand, two hundred twenty-five".