6561230 has 32 divisors (see below), whose sum is σ = 13039488. Its totient is φ = 2361600.

The previous prime is 6561223. The next prime is 6561259. The reversal of 6561230 is 321656.

It is a super-2 number, since 2×6561230² = 86099478225800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6561196 and 6561205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4715 + ... + 5945.

It is an arithmetic number, because the mean of its divisors is an integer number (407484).

Almost surely, 2^6561230 is an apocalyptic number.

6561230 is a deficient number, since it is larger than the sum of its proper divisors (6478258).

6561230 is a wasteful number, since it uses less digits than its factorization.

6561230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 6561230 is about 2561.4898008776. The cubic root of 6561230 is about 187.2097316087.

Adding to 6561230 its sum of digits (23), we get a triangular number (6561253 = T₃₆₂₂).

Adding to 6561230 its reverse (321656), we get a palindrome (6882886).

The spelling of 6561230 in words is "six million, five hundred sixty-one thousand, two hundred thirty".