126610556 has 12 divisors (see below), whose sum is σ = 221970168. Its totient is φ = 63190512.

The previous prime is 126610531. The next prime is 126610571. The reversal of 126610556 is 655016621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26186 + ... + 30641.

It is an arithmetic number, because the mean of its divisors is an integer number (18497514).

Almost surely, 2^126610556 is an apocalyptic number.

It is an amenable number.

126610556 is a deficient number, since it is larger than the sum of its proper divisors (95359612).

126610556 is a wasteful number, since it uses less digits than its factorization.

126610556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57388 (or 57386 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 126610556 is about 11252.1356195169. The cubic root of 126610556 is about 502.1382507325.

The spelling of 126610556 in words is "one hundred twenty-six million, six hundred ten thousand, five hundred fifty-six".