126855878 has 4 divisors (see below), whose sum is σ = 190283820. Its totient is φ = 63427938.

The previous prime is 126855863. The next prime is 126855901. The reversal of 126855878 is 878558621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878558621 = 14557 ⋅60353.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31713968 + ... + 31713971.

It is an arithmetic number, because the mean of its divisors is an integer number (47570955).

Almost surely, 2^126855878 is an apocalyptic number.

126855878 is a deficient number, since it is larger than the sum of its proper divisors (63427942).

126855878 is an equidigital number, since it uses as much as digits as its factorization.

126855878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63427941.

The product of its digits is 1075200, while the sum is 50.

The square root of 126855878 is about 11263.0314746963. The cubic root of 126855878 is about 502.4623576829.

The spelling of 126855878 in words is "one hundred twenty-six million, eight hundred fifty-five thousand, eight hundred seventy-eight".