315202231 has 2 divisors, whose sum is σ = 315202232. Its totient is φ = 315202230.

The previous prime is 315202201. The next prime is 315202243. The reversal of 315202231 is 132202513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315202231 - 2¹³ = 315194039 is a prime.

It is a super-4 number, since 4×315202231⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 315202199 and 315202208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315202201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157601115 + 157601116.

It is an arithmetic number, because the mean of its divisors is an integer number (157601116).

Almost surely, 2^315202231 is an apocalyptic number.

315202231 is a deficient number, since it is larger than the sum of its proper divisors (1).

315202231 is an equidigital number, since it uses as much as digits as its factorization.

315202231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 315202231 is about 17753.9356481880. The cubic root of 315202231 is about 680.5547887374.

Adding to 315202231 its reverse (132202513), we get a palindrome (447404744).

The spelling of 315202231 in words is "three hundred fifteen million, two hundred two thousand, two hundred thirty-one".