12145057 has 2 divisors, whose sum is σ = 12145058. Its totient is φ = 12145056.

The previous prime is 12145043. The next prime is 12145069. The reversal of 12145057 is 75054121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12103441 + 41616 = 3479^2 + 204^2 .

It is an emirp because it is prime and its reverse (75054121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12145057 - 2⁷ = 12144929 is a prime.

It is a pancake number, because a pancake can be divided into 12145057 parts by 4928 straight cuts.

It is not a weakly prime, because it can be changed into another prime (12145457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072528 + 6072529.

It is an arithmetic number, because the mean of its divisors is an integer number (6072529).

Almost surely, 2^12145057 is an apocalyptic number.

It is an amenable number.

12145057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12145057 is an equidigital number, since it uses as much as digits as its factorization.

12145057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 12145057 is about 3484.9758966168. The cubic root of 12145057 is about 229.8616496249.

Adding to 12145057 its reverse (75054121), we get a palindrome (87199178).

The spelling of 12145057 in words is "twelve million, one hundred forty-five thousand, fifty-seven".