315283109 has 2 divisors, whose sum is σ = 315283110. Its totient is φ = 315283108.

The previous prime is 315283049. The next prime is 315283117. The reversal of 315283109 is 901382513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262764100 + 52519009 = 16210^2 + 7247^2 .

It is an emirp because it is prime and its reverse (901382513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315283109 - 2⁸ = 315282853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315285109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157641554 + 157641555.

It is an arithmetic number, because the mean of its divisors is an integer number (157641555).

Almost surely, 2^315283109 is an apocalyptic number.

It is an amenable number.

315283109 is a deficient number, since it is larger than the sum of its proper divisors (1).

315283109 is an equidigital number, since it uses as much as digits as its factorization.

315283109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 315283109 is about 17756.2132505780. The cubic root of 315283109 is about 680.6129917974.

The spelling of 315283109 in words is "three hundred fifteen million, two hundred eighty-three thousand, one hundred nine".