125870859 has 24 divisors (see below), whose sum is σ = 185294304. Its totient is φ = 82320000.

The previous prime is 125870837. The next prime is 125870867. The reversal of 125870859 is 958078521.

It is a happy number.

125870859 is a `hidden beast` number, since 12 + 587 + 0 + 8 + 59 = 666.

It is not a de Polignac number, because 125870859 - 2⁸ = 125870603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125870869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179209 + ... + 179909.

It is an arithmetic number, because the mean of its divisors is an integer number (7720596).

Almost surely, 2^125870859 is an apocalyptic number.

125870859 is a deficient number, since it is larger than the sum of its proper divisors (59423445).

125870859 is a wasteful number, since it uses less digits than its factorization.

125870859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 125870859 is about 11219.2182882766. The cubic root of 125870859 is about 501.1584592050.

The spelling of 125870859 in words is "one hundred twenty-five million, eight hundred seventy thousand, eight hundred fifty-nine".