12251648 has 20 divisors (see below), whose sum is σ = 24480390. Its totient is φ = 6125568.

The previous prime is 12251647. The next prime is 12251653. The reversal of 12251648 is 84615221.

It can be written as a sum of positive squares in only one way, i.e., 9535744 + 2715904 = 3088^2 + 1648^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12251648.

It is not an unprimeable number, because it can be changed into a prime (12251641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11453 + ... + 12476.

Almost surely, 2^12251648 is an apocalyptic number.

It is an amenable number.

12251648 is a deficient number, since it is larger than the sum of its proper divisors (12228742).

12251648 is an frugal number, since it uses more digits than its factorization.

12251648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23947 (or 23931 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 12251648 is about 3500.2354206539. The cubic root of 12251648 is about 230.5321515530.

Adding to 12251648 its reverse (84615221), we get a palindrome (96866869).

The spelling of 12251648 in words is "twelve million, two hundred fifty-one thousand, six hundred forty-eight".