315853133 has 2 divisors, whose sum is σ = 315853134. Its totient is φ = 315853132.

The previous prime is 315853099. The next prime is 315853157. The reversal of 315853133 is 331358513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261727684 + 54125449 = 16178^2 + 7357^2 .

It is an emirp because it is prime and its reverse (331358513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315853133 - 2¹⁴ = 315836749 is a prime.

It is equal to p_17063645 and since 315853133 and 17063645 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315853133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315853633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157926566 + 157926567.

It is an arithmetic number, because the mean of its divisors is an integer number (157926567).

Almost surely, 2^315853133 is an apocalyptic number.

It is an amenable number.

315853133 is a deficient number, since it is larger than the sum of its proper divisors (1).

315853133 is an equidigital number, since it uses as much as digits as its factorization.

315853133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 315853133 is about 17772.2573974158. The cubic root of 315853133 is about 681.0229219552.

The spelling of 315853133 in words is "three hundred fifteen million, eight hundred fifty-three thousand, one hundred thirty-three".