125242039 has 8 divisors (see below), whose sum is σ = 139527360. Its totient is φ = 111621216.

The previous prime is 125242037. The next prime is 125242063. The reversal of 125242039 is 930242521.

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 125242039 - 2¹ = 125242037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125241998 and 125242016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125242031) 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, 165727 + ... + 166480.

It is an arithmetic number, because the mean of its divisors is an integer number (17440920).

Almost surely, 2^125242039 is an apocalyptic number.

125242039 is a deficient number, since it is larger than the sum of its proper divisors (14285321).

125242039 is a wasteful number, since it uses less digits than its factorization.

125242039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332249.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 125242039 is about 11191.1589658980. The cubic root of 125242039 is about 500.3225105958.

The spelling of 125242039 in words is "one hundred twenty-five million, two hundred forty-two thousand, thirty-nine".