126704449 has 4 divisors (see below), whose sum is σ = 126731200. Its totient is φ = 126677700.

The previous prime is 126704441. The next prime is 126704453. The reversal of 126704449 is 944407621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944407621 = 269 ⋅3510809.

It is a cyclic number.

It is not a de Polignac number, because 126704449 - 2³ = 126704441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126704441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4149 + ... + 16450.

It is an arithmetic number, because the mean of its divisors is an integer number (31682800).

Almost surely, 2^126704449 is an apocalyptic number.

It is an amenable number.

126704449 is a deficient number, since it is larger than the sum of its proper divisors (26751).

126704449 is an equidigital number, since it uses as much as digits as its factorization.

126704449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26750.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 126704449 is about 11256.3070764794. The cubic root of 126704449 is about 502.2623468017.

The spelling of 126704449 in words is "one hundred twenty-six million, seven hundred four thousand, four hundred forty-nine".