315193 has 2 divisors, whose sum is σ = 315194. Its totient is φ = 315192.

The previous prime is 315181. The next prime is 315199. The reversal of 315193 is 391513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204304 + 110889 = 452^2 + 333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315193 is a prime.

It is an Ulam number.

315193 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (315199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157596 + 157597.

It is an arithmetic number, because the mean of its divisors is an integer number (157597).

2³¹⁵¹⁹³ is an apocalyptic number.

It is an amenable number.

315193 is a deficient number, since it is larger than the sum of its proper divisors (1).

315193 is an equidigital number, since it uses as much as digits as its factorization.

315193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405, while the sum is 22.

The square root of 315193 is about 561.4205197532. The cubic root of 315193 is about 68.0548145106.

The spelling of 315193 in words is "three hundred fifteen thousand, one hundred ninety-three".