12248557 has 2 divisors, whose sum is σ = 12248558. Its totient is φ = 12248556.

The previous prime is 12248519. The next prime is 12248567. The reversal of 12248557 is 75584221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7557001 + 4691556 = 2749^2 + 2166^2 .

It is an emirp because it is prime and its reverse (75584221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12248557 - 2⁷ = 12248429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12248567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124278 + 6124279.

It is an arithmetic number, because the mean of its divisors is an integer number (6124279).

Almost surely, 2^12248557 is an apocalyptic number.

It is an amenable number.

12248557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12248557 is an equidigital number, since it uses as much as digits as its factorization.

12248557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 34.

The square root of 12248557 is about 3499.7938510718. The cubic root of 12248557 is about 230.5127627379.

The spelling of 12248557 in words is "twelve million, two hundred forty-eight thousand, five hundred fifty-seven".