13012127 has 4 divisors (see below), whose sum is σ = 13092120. Its totient is φ = 12932136.

The previous prime is 13012117. The next prime is 13012141. The reversal of 13012127 is 72121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13012127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012117) 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 in 3 ways as a sum of consecutive naturals, for example, 39752 + ... + 40077.

It is an arithmetic number, because the mean of its divisors is an integer number (3273030).

Almost surely, 2^13012127 is an apocalyptic number.

13012127 is a deficient number, since it is larger than the sum of its proper divisors (79993).

13012127 is an equidigital number, since it uses as much as digits as its factorization.

13012127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79992.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 13012127 is about 3607.2325957720. The cubic root of 13012127 is about 235.2065604997.

Adding to 13012127 its reverse (72121031), we get a palindrome (85133158).

The spelling of 13012127 in words is "thirteen million, twelve thousand, one hundred twenty-seven".