126441549 has 24 divisors (see below), whose sum is σ = 198034200. Its totient is φ = 77277312.

The previous prime is 126441541. The next prime is 126441571. The reversal of 126441549 is 945144621.

126441549 is a `hidden beast` number, since 1 + 2 + 644 + 1 + 5 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1225449 + 125216100 = 1107^2 + 11190^2 .

It is not a de Polignac number, because 126441549 - 2³ = 126441541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126441541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13807 + ... + 21059.

It is an arithmetic number, because the mean of its divisors is an integer number (8251425).

Almost surely, 2^126441549 is an apocalyptic number.

It is an amenable number.

126441549 is a deficient number, since it is larger than the sum of its proper divisors (71592651).

126441549 is a wasteful number, since it uses less digits than its factorization.

126441549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421 (or 7418 counting only the distinct ones).

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

The square root of 126441549 is about 11244.6231150715. The cubic root of 126441549 is about 501.9147236405.

The spelling of 126441549 in words is "one hundred twenty-six million, four hundred forty-one thousand, five hundred forty-nine".