125878 has 4 divisors (see below), whose sum is σ = 188820. Its totient is φ = 62938.

The previous prime is 125863. The next prime is 125887. The reversal of 125878 is 878521.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

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, 31468 + ... + 31471.

It is an arithmetic number, because the mean of its divisors is an integer number (47205).

2¹²⁵⁸⁷⁸ is an apocalyptic number.

125878 is a deficient number, since it is larger than the sum of its proper divisors (62942).

125878 is an equidigital number, since it uses as much as digits as its factorization.

125878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62941.

The product of its digits is 4480, while the sum is 31.

The square root of 125878 is about 354.7928973359. The cubic root of 125878 is about 50.1167936392.

The spelling of 125878 in words is "one hundred twenty-five thousand, eight hundred seventy-eight".