12270247 has 12 divisors (see below), whose sum is σ = 14076720. Its totient is φ = 10667360.

The previous prime is 12270241. The next prime is 12270281. The reversal of 12270247 is 74207221.

It is not a de Polignac number, because 12270247 - 2¹¹ = 12268199 is a prime.

It is a super-2 number, since 2×12270247² = 301117922882018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 579 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (1173060).

Almost surely, 2^12270247 is an apocalyptic number.

12270247 is a deficient number, since it is larger than the sum of its proper divisors (1806473).

12270247 is a wasteful number, since it uses less digits than its factorization.

12270247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454 (or 4443 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 12270247 is about 3502.8912343948. The cubic root of 12270247 is about 230.6487481023.

Adding to 12270247 its reverse (74207221), we get a palindrome (86477468).

The spelling of 12270247 in words is "twelve million, two hundred seventy thousand, two hundred forty-seven".