126691626 has 16 divisors (see below), whose sum is σ = 260231904. Its totient is φ = 41089104.

The previous prime is 126691597. The next prime is 126691657. The reversal of 126691626 is 626196621.

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 7 ways as a sum of consecutive naturals, for example, 285120 + ... + 285563.

It is an arithmetic number, because the mean of its divisors is an integer number (16264494).

Almost surely, 2^126691626 is an apocalyptic number.

126691626 is an abundant number, since it is smaller than the sum of its proper divisors (133540278).

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

126691626 is a wasteful number, since it uses less digits than its factorization.

126691626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570725.

The product of its digits is 46656, while the sum is 39.

The square root of 126691626 is about 11255.7374702860. The cubic root of 126691626 is about 502.2454025733.

The spelling of 126691626 in words is "one hundred twenty-six million, six hundred ninety-one thousand, six hundred twenty-six".