125047 has 4 divisors (see below), whose sum is σ = 134680. Its totient is φ = 115416.

The previous prime is 125029. The next prime is 125053. The reversal of 125047 is 740521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125047 - 2⁷ = 124919 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125017) 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 3 ways as a sum of consecutive naturals, for example, 4797 + ... + 4822.

It is an arithmetic number, because the mean of its divisors is an integer number (33670).

125047 is a Friedman number, since it can be written as 50^(2+1)+47, using all its digits and the basic arithmetic operations.

2¹²⁵⁰⁴⁷ is an apocalyptic number.

125047 is a deficient number, since it is larger than the sum of its proper divisors (9633).

125047 is an equidigital number, since it uses as much as digits as its factorization.

125047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9632.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 125047 is about 353.6198523839. The cubic root of 125047 is about 50.0062658814.

Adding to 125047 its reverse (740521), we get a palindrome (865568).

The spelling of 125047 in words is "one hundred twenty-five thousand, forty-seven".