125849013 has 8 divisors (see below), whose sum is σ = 169367328. Its totient is φ = 83115024.

The previous prime is 125848973. The next prime is 125849021. The reversal of 125849013 is 310948521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125849013 - 2²⁰ = 124800437 is a prime.

It is a super-3 number, since 3×125849013³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125849093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195706 + ... + 196347.

It is an arithmetic number, because the mean of its divisors is an integer number (21170916).

Almost surely, 2^125849013 is an apocalyptic number.

It is an amenable number.

125849013 is a deficient number, since it is larger than the sum of its proper divisors (43518315).

125849013 is a wasteful number, since it uses less digits than its factorization.

125849013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392163.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 125849013 is about 11218.2446487853. The cubic root of 125849013 is about 501.1294640342.

The spelling of 125849013 in words is "one hundred twenty-five million, eight hundred forty-nine thousand, thirteen".