125878801 has 4 divisors (see below), whose sum is σ = 128012400. Its totient is φ = 123745204.

The previous prime is 125878787. The next prime is 125878813. The reversal of 125878801 is 108878521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108878521 = 587 ⋅185483.

It is a cyclic number.

It is not a de Polignac number, because 125878801 - 2⁵ = 125878769 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125878861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066711 + ... + 1066828.

It is an arithmetic number, because the mean of its divisors is an integer number (32003100).

Almost surely, 2^125878801 is an apocalyptic number.

It is an amenable number.

125878801 is a deficient number, since it is larger than the sum of its proper divisors (2133599).

125878801 is an equidigital number, since it uses as much as digits as its factorization.

125878801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133598.

The product of its (nonzero) digits is 35840, while the sum is 40.

The square root of 125878801 is about 11219.5722289221. The cubic root of 125878801 is about 501.1689994174.

The spelling of 125878801 in words is "one hundred twenty-five million, eight hundred seventy-eight thousand, eight hundred one".