126338878 has 4 divisors (see below), whose sum is σ = 189508320. Its totient is φ = 63169438.

The previous prime is 126338851. The next prime is 126338881. The reversal of 126338878 is 878833621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878833621 = 881 ⋅997541.

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 as a sum of consecutive naturals, namely, 31584718 + ... + 31584721.

It is an arithmetic number, because the mean of its divisors is an integer number (47377080).

Almost surely, 2^126338878 is an apocalyptic number.

126338878 is a deficient number, since it is larger than the sum of its proper divisors (63169442).

126338878 is an equidigital number, since it uses as much as digits as its factorization.

126338878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63169441.

The product of its digits is 387072, while the sum is 46.

The square root of 126338878 is about 11240.0568503900. The cubic root of 126338878 is about 501.7788346563.

The spelling of 126338878 in words is "one hundred twenty-six million, three hundred thirty-eight thousand, eight hundred seventy-eight".