12126973 has 2 divisors, whose sum is σ = 12126974. Its totient is φ = 12126972.

The previous prime is 12126971. The next prime is 12127007. The reversal of 12126973 is 37962121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6827769 + 5299204 = 2613^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 12126973 - 2¹ = 12126971 is a prime.

Together with 12126971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12126971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063486 + 6063487.

It is an arithmetic number, because the mean of its divisors is an integer number (6063487).

Almost surely, 2^12126973 is an apocalyptic number.

It is an amenable number.

12126973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126973 is an equidigital number, since it uses as much as digits as its factorization.

12126973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 12126973 is about 3482.3803640613. The cubic root of 12126973 is about 229.7475048897.

The spelling of 12126973 in words is "twelve million, one hundred twenty-six thousand, nine hundred seventy-three".