12109057 has 2 divisors, whose sum is σ = 12109058. Its totient is φ = 12109056.

The previous prime is 12109051. The next prime is 12109067. The reversal of 12109057 is 75090121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8271376 + 3837681 = 2876^2 + 1959^2 .

It is a cyclic number.

It is not a de Polignac number, because 12109057 - 2¹⁵ = 12076289 is a prime.

It is a super-2 number, since 2×12109057² = 293258522858498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12109051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6054528 + 6054529.

It is an arithmetic number, because the mean of its divisors is an integer number (6054529).

Almost surely, 2^12109057 is an apocalyptic number.

It is an amenable number.

12109057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12109057 is an equidigital number, since it uses as much as digits as its factorization.

12109057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12109057 is about 3479.8070348800. The cubic root of 12109057 is about 229.6343086016.

Adding to 12109057 its reverse (75090121), we get a palindrome (87199178).

The spelling of 12109057 in words is "twelve million, one hundred nine thousand, fifty-seven".