315226061 has 2 divisors, whose sum is σ = 315226062. Its totient is φ = 315226060.

The previous prime is 315226031. The next prime is 315226069. The reversal of 315226061 is 160622513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302934025 + 12292036 = 17405^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 315226061 - 2⁶ = 315225997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315226061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315226069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157613030 + 157613031.

It is an arithmetic number, because the mean of its divisors is an integer number (157613031).

Almost surely, 2^315226061 is an apocalyptic number.

It is an amenable number.

315226061 is a deficient number, since it is larger than the sum of its proper divisors (1).

315226061 is an equidigital number, since it uses as much as digits as its factorization.

315226061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 315226061 is about 17754.6067543046. The cubic root of 315226061 is about 680.5719387978.

Adding to 315226061 its reverse (160622513), we get a palindrome (475848574).

The spelling of 315226061 in words is "three hundred fifteen million, two hundred twenty-six thousand, sixty-one".