315225233 has 2 divisors, whose sum is σ = 315225234. Its totient is φ = 315225232.

The previous prime is 315225221. The next prime is 315225241. The reversal of 315225233 is 332522513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195804049 + 119421184 = 13993^2 + 10928^2 .

It is a cyclic number.

It is not a de Polignac number, because 315225233 - 2¹⁶ = 315159697 is a prime.

It is not a weakly prime, because it can be changed into another prime (315225283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157612616 + 157612617.

It is an arithmetic number, because the mean of its divisors is an integer number (157612617).

Almost surely, 2^315225233 is an apocalyptic number.

It is an amenable number.

315225233 is a deficient number, since it is larger than the sum of its proper divisors (1).

315225233 is an equidigital number, since it uses as much as digits as its factorization.

315225233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 315225233 is about 17754.5834363975. The cubic root of 315225233 is about 680.5713429143.

Adding to 315225233 its reverse (332522513), we get a palindrome (647747746).

The spelling of 315225233 in words is "three hundred fifteen million, two hundred twenty-five thousand, two hundred thirty-three".