315021079 has 2 divisors, whose sum is σ = 315021080. Its totient is φ = 315021078.

The previous prime is 315021037. The next prime is 315021097. The reversal of 315021079 is 970120513.

Together with next prime (315021097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (970120513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315021079 - 2⁹ = 315020567 is a prime.

It is a super-3 number, since 3×315021079³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315021479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157510539 + 157510540.

It is an arithmetic number, because the mean of its divisors is an integer number (157510540).

Almost surely, 2^315021079 is an apocalyptic number.

315021079 is a deficient number, since it is larger than the sum of its proper divisors (1).

315021079 is an equidigital number, since it uses as much as digits as its factorization.

315021079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 315021079 is about 17748.8331729159. The cubic root of 315021079 is about 680.4243883423.

The spelling of 315021079 in words is "three hundred fifteen million, twenty-one thousand, seventy-nine".