126240544 has 12 divisors (see below), whose sum is σ = 248536134. Its totient is φ = 63120256.

The previous prime is 126240539. The next prime is 126240547. The reversal of 126240544 is 445042621.

It can be written as a sum of positive squares in only one way, i.e., 116380944 + 9859600 = 10788^2 + 3140^2 .

It is not an unprimeable number, because it can be changed into a prime (126240547) 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 as a sum of consecutive naturals, namely, 1972477 + ... + 1972540.

Almost surely, 2^126240544 is an apocalyptic number.

It is an amenable number.

126240544 is a deficient number, since it is larger than the sum of its proper divisors (122295590).

126240544 is an equidigital number, since it uses as much as digits as its factorization.

126240544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945027 (or 3945019 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 126240544 is about 11235.6817327655. The cubic root of 126240544 is about 501.6486168174.

The spelling of 126240544 in words is "one hundred twenty-six million, two hundred forty thousand, five hundred forty-four".