12272530 has 32 divisors (see below), whose sum is σ = 23269680. Its totient is φ = 4654080.

The previous prime is 12272483. The next prime is 12272549. The reversal of 12272530 is 3527221.

12272530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 7241481 + 5031049 = 2691^2 + 2243^2 .

It is a super-2 number, since 2×12272530² = 301229985201800, which contains 22 as substring.

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, 14766 + ... + 15574.

Almost surely, 2^12272530 is an apocalyptic number.

12272530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272530 is a deficient number, since it is larger than the sum of its proper divisors (10997150).

12272530 is a wasteful number, since it uses less digits than its factorization.

12272530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12272530 is about 3503.2170929019. The cubic root of 12272530 is about 230.6630520370.

Adding to 12272530 its reverse (3527221), we get a palindrome (15799751).

The spelling of 12272530 in words is "twelve million, two hundred seventy-two thousand, five hundred thirty".