12523734 has 48 divisors (see below), whose sum is σ = 28606032. Its totient is φ = 4105728.

The previous prime is 12523729. The next prime is 12523739. The reversal of 12523734 is 43732521.

It is an interprime number because it is at equal distance from previous prime (12523729) and next prime (12523739).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12523698 and 12523707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35302 + ... + 35654.

It is an arithmetic number, because the mean of its divisors is an integer number (595959).

Almost surely, 2^12523734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12523734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14303016).

12523734 is an abundant number, since it is smaller than the sum of its proper divisors (16082298).

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

12523734 is an equidigital number, since it uses as much as digits as its factorization.

12523734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 431 counting only the distinct ones).

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

The square root of 12523734 is about 3538.8888086517. Note that the first 4 decimals coincide. The cubic root of 12523734 is about 232.2262334402.

The spelling of 12523734 in words is "twelve million, five hundred twenty-three thousand, seven hundred thirty-four".