12273534 has 96 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 3157056.

The previous prime is 12273523. The next prime is 12273539. The reversal of 12273534 is 43537221.

12273534 is a `hidden beast` number, since 122 + 7 + 3 + 534 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12273498 and 12273507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273539) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96579 + ... + 96705.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 2^12273534 is an apocalyptic number.

12273534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16773120).

12273534 is an abundant number, since it is smaller than the sum of its proper divisors (21272706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12273534 is a wasteful number, since it uses less digits than its factorization.

12273534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 211 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 12273534 is about 3503.3603868286. The cubic root of 12273534 is about 230.6693419487.

It can be divided in two parts, 1227 and 3534, that added together give a square (4761 = 69²).

The spelling of 12273534 in words is "twelve million, two hundred seventy-three thousand, five hundred thirty-four".