125247 has 8 divisors (see below), whose sum is σ = 169344. Its totient is φ = 82328.

The previous prime is 125243. The next prime is 125261. The reversal of 125247 is 742521.

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 125247 - 2² = 125243 is a prime.

It is a super-2 number, since 2×125247² = 31373622018, which contains 22 as substring.

It is an Ulam number.

125247 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (21168).

2¹²⁵²⁴⁷ is an apocalyptic number.

125247 is a deficient number, since it is larger than the sum of its proper divisors (44097).

125247 is an equidigital number, since it uses as much as digits as its factorization.

125247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its digits is 560, while the sum is 21.

The square root of 125247 is about 353.9025289539. The cubic root of 125247 is about 50.0329116650.

Adding to 125247 its reverse (742521), we get a palindrome (867768).

The spelling of 125247 in words is "one hundred twenty-five thousand, two hundred forty-seven".