12273547 has 8 divisors (see below), whose sum is σ = 14419440. Its totient is φ = 10299360.

The previous prime is 12273539. The next prime is 12273571. The reversal of 12273547 is 74537221.

12273547 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12273547 - 2³ = 12273539 is a prime.

It is a super-2 number, since 2×12273547² = 301279911922418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12273347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42772 + ... + 43057.

It is an arithmetic number, because the mean of its divisors is an integer number (1802430).

Almost surely, 2^12273547 is an apocalyptic number.

12273547 is a deficient number, since it is larger than the sum of its proper divisors (2145893).

12273547 is a wasteful number, since it uses less digits than its factorization.

12273547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85853.

The product of its digits is 11760, while the sum is 31.

The square root of 12273547 is about 3503.3622421896. The cubic root of 12273547 is about 230.6694233895.

It can be divided in two parts, 1227 and 3547, that added together give a palindrome (4774).

The spelling of 12273547 in words is "twelve million, two hundred seventy-three thousand, five hundred forty-seven".