12540230 has 8 divisors (see below), whose sum is σ = 22572432. Its totient is φ = 5016088.

The previous prime is 12540217. The next prime is 12540259. The reversal of 12540230 is 3204521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12540199 and 12540208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627002 + ... + 627021.

It is an arithmetic number, because the mean of its divisors is an integer number (2821554).

Almost surely, 2^12540230 is an apocalyptic number.

12540230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12540230 is a deficient number, since it is larger than the sum of its proper divisors (10032202).

12540230 is a wasteful number, since it uses less digits than its factorization.

12540230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254030.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12540230 is about 3541.2187167697. The cubic root of 12540230 is about 232.3281498820.

Adding to 12540230 its reverse (3204521), we get a palindrome (15744751).

The spelling of 12540230 in words is "twelve million, five hundred forty thousand, two hundred thirty".