126813864 has 32 divisors (see below), whose sum is σ = 317700000. Its totient is φ = 42182592.

The previous prime is 126813859. The next prime is 126813871. The reversal of 126813864 is 468318621.

It is a super-2 number, since 2×126813864² = 32163512205220992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 6682 + ... + 17270.

It is an arithmetic number, because the mean of its divisors is an integer number (9928125).

Almost surely, 2^126813864 is an apocalyptic number.

It is an amenable number.

126813864 is an abundant number, since it is smaller than the sum of its proper divisors (190886136).

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

126813864 is a wasteful number, since it uses less digits than its factorization.

126813864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097 (or 11093 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 126813864 is about 11261.1661918293. The cubic root of 126813864 is about 502.4068805940.

The spelling of 126813864 in words is "one hundred twenty-six million, eight hundred thirteen thousand, eight hundred sixty-four".