315461 has 2 divisors, whose sum is σ = 315462. Its totient is φ = 315460.

The previous prime is 315451. The next prime is 315467. The reversal of 315461 is 164513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 84100 = 481^2 + 290^2 .

It is an emirp because it is prime and its reverse (164513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157730 + 157731.

It is an arithmetic number, because the mean of its divisors is an integer number (157731).

2³¹⁵⁴⁶¹ is an apocalyptic number.

It is an amenable number.

315461 is a deficient number, since it is larger than the sum of its proper divisors (1).

315461 is an equidigital number, since it uses as much as digits as its factorization.

315461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 315461 is about 561.6591493068. The cubic root of 315461 is about 68.0740974298.

Adding to 315461 its reverse (164513), we get a palindrome (479974).

The spelling of 315461 in words is "three hundred fifteen thousand, four hundred sixty-one".