126028449 has 12 divisors (see below), whose sum is σ = 182290212. Its totient is φ = 83904000.

The previous prime is 126028433. The next prime is 126028451. The reversal of 126028449 is 944820621.

126028449 is a `hidden beast` number, since 1 + 2 + 602 + 8 + 4 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18533025 + 107495424 = 4305^2 + 10368^2 .

It is not a de Polignac number, because 126028449 - 2⁴ = 126028433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126028489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2352 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (15190851).

Almost surely, 2^126028449 is an apocalyptic number.

It is an amenable number.

126028449 is a deficient number, since it is larger than the sum of its proper divisors (56261763).

126028449 is a wasteful number, since it uses less digits than its factorization.

126028449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19168 (or 19165 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 126028449 is about 11226.2393079784. The cubic root of 126028449 is about 501.3675216923.

The spelling of 126028449 in words is "one hundred twenty-six million, twenty-eight thousand, four hundred forty-nine".