126508449 has 16 divisors (see below), whose sum is σ = 174363840. Its totient is φ = 81543360.

The previous prime is 126508423. The next prime is 126508453. The reversal of 126508449 is 944805621.

It is not a de Polignac number, because 126508449 - 2⁹ = 126507937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126508409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4939 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (10897740).

Almost surely, 2^126508449 is an apocalyptic number.

It is an amenable number.

126508449 is a deficient number, since it is larger than the sum of its proper divisors (47855391).

126508449 is a wasteful number, since it uses less digits than its factorization.

126508449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 126508449 is about 11247.5974767948. The cubic root of 126508449 is about 502.0032287640.

The spelling of 126508449 in words is "one hundred twenty-six million, five hundred eight thousand, four hundred forty-nine".