12013877 has 2 divisors, whose sum is σ = 12013878. Its totient is φ = 12013876.

The previous prime is 12013873. The next prime is 12013891. The reversal of 12013877 is 77831021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 1522756 = 3239^2 + 1234^2 .

It is an emirp because it is prime and its reverse (77831021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12013877 - 2² = 12013873 is a prime.

It is a super-2 number, since 2×12013877² = 288666481142258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006938 + 6006939.

It is an arithmetic number, because the mean of its divisors is an integer number (6006939).

Almost surely, 2^12013877 is an apocalyptic number.

It is an amenable number.

12013877 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013877 is an equidigital number, since it uses as much as digits as its factorization.

12013877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12013877 is about 3466.1040088260. The cubic root of 12013877 is about 229.0310656227.

Adding to 12013877 its reverse (77831021), we get a palindrome (89844898).

The spelling of 12013877 in words is "twelve million, thirteen thousand, eight hundred seventy-seven".