12250724 has 6 divisors (see below), whose sum is σ = 21438774. Its totient is φ = 6125360.

The previous prime is 12250703. The next prime is 12250729. The reversal of 12250724 is 42705221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 2010724 = 3200^2 + 1418^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12250724.

It is not an unprimeable number, because it can be changed into a prime (12250729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531337 + ... + 1531344.

It is an arithmetic number, because the mean of its divisors is an integer number (3573129).

Almost surely, 2^12250724 is an apocalyptic number.

It is an amenable number.

12250724 is a deficient number, since it is larger than the sum of its proper divisors (9188050).

12250724 is a wasteful number, since it uses less digits than its factorization.

12250724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062685 (or 3062683 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12250724 is about 3500.1034270433. The cubic root of 12250724 is about 230.5263559500.

Adding to 12250724 its reverse (42705221), we get a palindrome (54955945).

The spelling of 12250724 in words is "twelve million, two hundred fifty thousand, seven hundred twenty-four".