126871794 has 72 divisors (see below), whose sum is σ = 322545600. Its totient is φ = 35305920.

The previous prime is 126871793. The next prime is 126871819. The reversal of 126871794 is 497178621.

It is a happy number.

It is a super-2 number, since 2×126871794² = 32192904225556872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126871793) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 211507 + ... + 212105.

It is an arithmetic number, because the mean of its divisors is an integer number (4479800).

Almost surely, 2^126871794 is an apocalyptic number.

126871794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126871794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161272800).

126871794 is an abundant number, since it is smaller than the sum of its proper divisors (195673806).

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

126871794 is a wasteful number, since it uses less digits than its factorization.

126871794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 652 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 126871794 is about 11263.7380118680. The cubic root of 126871794 is about 502.4833706534.

The spelling of 126871794 in words is "one hundred twenty-six million, eight hundred seventy-one thousand, seven hundred ninety-four".