125131307 has 4 divisors (see below), whose sum is σ = 143007216. Its totient is φ = 107255400.

The previous prime is 125131289. The next prime is 125131309. The reversal of 125131307 is 703131521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703131521 = 79 ⋅8900399.

It is not a de Polignac number, because 125131307 - 2¹⁸ = 124869163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125131309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8937944 + ... + 8937957.

It is an arithmetic number, because the mean of its divisors is an integer number (35751804).

Almost surely, 2^125131307 is an apocalyptic number.

125131307 is a deficient number, since it is larger than the sum of its proper divisors (17875909).

125131307 is an equidigital number, since it uses as much as digits as its factorization.

125131307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17875908.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 125131307 is about 11186.2105737376. The cubic root of 125131307 is about 500.1750147325.

Adding to 125131307 its reverse (703131521), we get a palindrome (828262828).

The spelling of 125131307 in words is "one hundred twenty-five million, one hundred thirty-one thousand, three hundred seven".