125640307 has 8 divisors (see below), whose sum is σ = 135686880. Its totient is φ = 115648320.

The previous prime is 125640269. The next prime is 125640313. The reversal of 125640307 is 703046521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125640307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125640377) 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, 8794 + ... + 18127.

It is an arithmetic number, because the mean of its divisors is an integer number (16960860).

Almost surely, 2^125640307 is an apocalyptic number.

125640307 is a deficient number, since it is larger than the sum of its proper divisors (10046573).

125640307 is a wasteful number, since it uses less digits than its factorization.

125640307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27293.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 125640307 is about 11208.9387097976. The cubic root of 125640307 is about 500.8522890480.

Adding to 125640307 its reverse (703046521), we get a palindrome (828686828).

The spelling of 125640307 in words is "one hundred twenty-five million, six hundred forty thousand, three hundred seven".