125545013 has 8 divisors (see below), whose sum is σ = 137041536. Its totient is φ = 114062400.

The previous prime is 125544977. The next prime is 125545061. The reversal of 125545013 is 310545521.

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

It is a cyclic number.

It is not a de Polignac number, because 125545013 - 2¹⁸ = 125282869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125545073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27245 + ... + 31517.

It is an arithmetic number, because the mean of its divisors is an integer number (17130192).

Almost surely, 2^125545013 is an apocalyptic number.

It is an amenable number.

125545013 is a deficient number, since it is larger than the sum of its proper divisors (11496523).

125545013 is a wasteful number, since it uses less digits than its factorization.

125545013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 125545013 is about 11204.6870996026. The cubic root of 125545013 is about 500.7256304116.

The spelling of 125545013 in words is "one hundred twenty-five million, five hundred forty-five thousand, thirteen".