126605544 has 64 divisors (see below), whose sum is σ = 345038400. Its totient is φ = 38478336.

The previous prime is 126605533. The next prime is 126605551. The reversal of 126605544 is 445506621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23452 + ... + 28340.

It is an arithmetic number, because the mean of its divisors is an integer number (5391225).

Almost surely, 2^126605544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126605544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172519200).

126605544 is an abundant number, since it is smaller than the sum of its proper divisors (218432856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126605544 is a wasteful number, since it uses less digits than its factorization.

126605544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994 (or 4990 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 126605544 is about 11251.9129040355. The cubic root of 126605544 is about 502.1316247707.

The spelling of 126605544 in words is "one hundred twenty-six million, six hundred five thousand, five hundred forty-four".