126671538 has 32 divisors (see below), whose sum is σ = 291326976. Its totient is φ = 35967888.

The previous prime is 126671521. The next prime is 126671543. The reversal of 126671538 is 835176621.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 126671496 and 126671505.

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, 2406 + ... + 16097.

It is an arithmetic number, because the mean of its divisors is an integer number (9103968).

Almost surely, 2^126671538 is an apocalyptic number.

126671538 is an abundant number, since it is smaller than the sum of its proper divisors (164655438).

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

126671538 is a wasteful number, since it uses less digits than its factorization.

126671538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18678.

The product of its digits is 60480, while the sum is 39.

The square root of 126671538 is about 11254.8450900046. The cubic root of 126671538 is about 502.2188561228.

The spelling of 126671538 in words is "one hundred twenty-six million, six hundred seventy-one thousand, five hundred thirty-eight".