12240577 has 4 divisors (see below), whose sum is σ = 12772800. Its totient is φ = 11708356.

The previous prime is 12240559. The next prime is 12240583. The reversal of 12240577 is 77504221.

12240577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77504221 = 61 ⋅1270561.

It is a cyclic number.

It is not a de Polignac number, because 12240577 - 2¹⁵ = 12207809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266077 + ... + 266122.

It is an arithmetic number, because the mean of its divisors is an integer number (3193200).

Almost surely, 2^12240577 is an apocalyptic number.

It is an amenable number.

12240577 is a deficient number, since it is larger than the sum of its proper divisors (532223).

12240577 is an equidigital number, since it uses as much as digits as its factorization.

12240577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532222.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 12240577 is about 3498.6535981717. The cubic root of 12240577 is about 230.4626917657.

Adding to 12240577 its reverse (77504221), we get a palindrome (89744798).

The spelling of 12240577 in words is "twelve million, two hundred forty thousand, five hundred seventy-seven".