125878878 has 24 divisors (see below), whose sum is σ = 278542368. Its totient is φ = 41066592.

The previous prime is 125878877. The next prime is 125878891. The reversal of 125878878 is 878878521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125878873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73551 + ... + 75242.

It is an arithmetic number, because the mean of its divisors is an integer number (11605932).

Almost surely, 2^125878878 is an apocalyptic number.

125878878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125878878 is an abundant number, since it is smaller than the sum of its proper divisors (152663490).

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

125878878 is a wasteful number, since it uses less digits than its factorization.

125878878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148848 (or 148845 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 54.

The square root of 125878878 is about 11219.5756604250. The cubic root of 125878878 is about 501.1691016056.

It can be divided in two parts, 125878 and 878, that added together give a triangular number (126756 = T₅₀₃).

The spelling of 125878878 in words is "one hundred twenty-five million, eight hundred seventy-eight thousand, eight hundred seventy-eight".