126144549 has 12 divisors (see below), whose sum is σ = 188086912. Its totient is φ = 81383400.

The previous prime is 126144533. The next prime is 126144583. The reversal of 126144549 is 945441621.

126144549 is a `hidden beast` number, since 12 + 61 + 44 + 549 = 666.

It is not a de Polignac number, because 126144549 - 2⁴ = 126144533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126144509) 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, 225787 + ... + 226344.

Almost surely, 2^126144549 is an apocalyptic number.

It is an amenable number.

126144549 is a deficient number, since it is larger than the sum of its proper divisors (61942363).

126144549 is a wasteful number, since it uses less digits than its factorization.

126144549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452168 (or 452165 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 126144549 is about 11231.4090389408. The cubic root of 126144549 is about 501.5214311323.

The spelling of 126144549 in words is "one hundred twenty-six million, one hundred forty-four thousand, five hundred forty-nine".