315105020 has 48 divisors (see below), whose sum is σ = 677865888. Its totient is φ = 123002880.

The previous prime is 315105019. The next prime is 315105023. The reversal of 315105020 is 20501513.

It is a self number, because there is not a number n which added to its sum of digits gives 315105020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315105023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150380 + ... + 152460.

It is an arithmetic number, because the mean of its divisors is an integer number (14122206).

Almost surely, 2^315105020 is an apocalyptic number.

It is an amenable number.

315105020 is an abundant number, since it is smaller than the sum of its proper divisors (362760868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315105020 is a wasteful number, since it uses less digits than its factorization.

315105020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 315105020 is about 17751.1977060704. The cubic root of 315105020 is about 680.4848186173.

Adding to 315105020 its reverse (20501513), we get a palindrome (335606533).

The spelling of 315105020 in words is "three hundred fifteen million, one hundred five thousand, twenty".