125440313 has 8 divisors (see below), whose sum is σ = 128578560. Its totient is φ = 122335920.

The previous prime is 125440309. The next prime is 125440369. The reversal of 125440313 is 313044521.

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 125440313 - 2² = 125440309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125446313) 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, 878 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (16072320).

Almost surely, 2^125440313 is an apocalyptic number.

It is an amenable number.

125440313 is a deficient number, since it is larger than the sum of its proper divisors (3138247).

125440313 is a wasteful number, since it uses less digits than its factorization.

125440313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16927.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 125440313 is about 11200.0139732056. The cubic root of 125440313 is about 500.5863960106.

Adding to 125440313 its reverse (313044521), we get a palindrome (438484834).

The spelling of 125440313 in words is "one hundred twenty-five million, four hundred forty thousand, three hundred thirteen".