315030061 has 2 divisors, whose sum is σ = 315030062. Its totient is φ = 315030060.

The previous prime is 315029983. The next prime is 315030097. The reversal of 315030061 is 160030513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207907561 + 107122500 = 14419^2 + 10350^2 .

It is a cyclic number.

It is not a de Polignac number, because 315030061 - 2¹¹ = 315028013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315030461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157515030 + 157515031.

It is an arithmetic number, because the mean of its divisors is an integer number (157515031).

Almost surely, 2^315030061 is an apocalyptic number.

It is an amenable number.

315030061 is a deficient number, since it is larger than the sum of its proper divisors (1).

315030061 is an equidigital number, since it uses as much as digits as its factorization.

315030061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 315030061 is about 17749.0862018302. The cubic root of 315030061 is about 680.4308551199.

Adding to 315030061 its reverse (160030513), we get a palindrome (475060574).

The spelling of 315030061 in words is "three hundred fifteen million, thirty thousand, sixty-one".