125491059 has 32 divisors (see below), whose sum is σ = 205424640. Its totient is φ = 75309696.

The previous prime is 125491039. The next prime is 125491061. The reversal of 125491059 is 950194521.

125491059 is a `hidden beast` number, since 1 + 2 + 549 + 105 + 9 = 666.

It is not a de Polignac number, because 125491059 - 2⁷ = 125490931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125491019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4614 + ... + 16500.

It is an arithmetic number, because the mean of its divisors is an integer number (6419520).

Almost surely, 2^125491059 is an apocalyptic number.

125491059 is a deficient number, since it is larger than the sum of its proper divisors (79933581).

125491059 is a wasteful number, since it uses less digits than its factorization.

125491059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11936 (or 11930 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 125491059 is about 11202.2791877368. The cubic root of 125491059 is about 500.6538898168.

The spelling of 125491059 in words is "one hundred twenty-five million, four hundred ninety-one thousand, fifty-nine".