311425 has 6 divisors (see below), whose sum is σ = 386198. Its totient is φ = 249120.

The previous prime is 311419. The next prime is 311447. The reversal of 311425 is 524113.

It can be written as a sum of positive squares in 3 ways, for example, as 53361 + 258064 = 231^2 + 508^2 .

It is not a de Polignac number, because 311425 - 2⁵ = 311393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311399 and 311408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6204 + ... + 6253.

2³¹¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

311425 is a deficient number, since it is larger than the sum of its proper divisors (74773).

311425 is a wasteful number, since it uses less digits than its factorization.

311425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12467 (or 12462 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 311425 is about 558.0546568214. The cubic root of 311425 is about 67.7825377130.

Adding to 311425 its reverse (524113), we get a palindrome (835538).

The spelling of 311425 in words is "three hundred eleven thousand, four hundred twenty-five".