126011449 has 2 divisors, whose sum is σ = 126011450. Its totient is φ = 126011448.

The previous prime is 126011447. The next prime is 126011471. The reversal of 126011449 is 944110621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67947049 + 58064400 = 8243^2 + 7620^2 .

It is an emirp because it is prime and its reverse (944110621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126011449 - 2¹ = 126011447 is a prime.

Together with 126011447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126011441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63005724 + 63005725.

It is an arithmetic number, because the mean of its divisors is an integer number (63005725).

Almost surely, 2^126011449 is an apocalyptic number.

It is an amenable number.

126011449 is a deficient number, since it is larger than the sum of its proper divisors (1).

126011449 is an equidigital number, since it uses as much as digits as its factorization.

126011449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 126011449 is about 11225.4821277306. The cubic root of 126011449 is about 501.3449774937.

The spelling of 126011449 in words is "one hundred twenty-six million, eleven thousand, four hundred forty-nine".