126394555 has 32 divisors (see below), whose sum is σ = 185103360. Its totient is φ = 80922240.

The previous prime is 126394529. The next prime is 126394571. The reversal of 126394555 is 555493621.

It is not a de Polignac number, because 126394555 - 2¹¹ = 126392507 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 45877 + ... + 48553.

It is an arithmetic number, because the mean of its divisors is an integer number (5784480).

Almost surely, 2^126394555 is an apocalyptic number.

126394555 is a deficient number, since it is larger than the sum of its proper divisors (58708805).

126394555 is a wasteful number, since it uses less digits than its factorization.

126394555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its digits is 162000, while the sum is 40.

The square root of 126394555 is about 11242.5332999284. The cubic root of 126394555 is about 501.8525344222.

The spelling of 126394555 in words is "one hundred twenty-six million, three hundred ninety-four thousand, five hundred fifty-five".