125831247 has 8 divisors (see below), whose sum is σ = 170618880. Its totient is φ = 82465560.

The previous prime is 125831231. The next prime is 125831257. The reversal of 125831247 is 742138521.

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

It is not a de Polignac number, because 125831247 - 2⁴ = 125831231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125831207) 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, 355279 + ... + 355632.

It is an arithmetic number, because the mean of its divisors is an integer number (21327360).

Almost surely, 2^125831247 is an apocalyptic number.

125831247 is a deficient number, since it is larger than the sum of its proper divisors (44787633).

125831247 is an equidigital number, since it uses as much as digits as its factorization.

125831247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710973.

The product of its digits is 13440, while the sum is 33.

The square root of 125831247 is about 11217.4527857264. The cubic root of 125831247 is about 501.1058815819.

Adding to 125831247 its reverse (742138521), we get a palindrome (867969768).

The spelling of 125831247 in words is "one hundred twenty-five million, eight hundred thirty-one thousand, two hundred forty-seven".