315020 has 24 divisors (see below), whose sum is σ = 697200. Its totient is φ = 119232.

The previous prime is 315013. The next prime is 315037. The reversal of 315020 is 20513.

315020 = T₇₁ + T₇₂ + ... + T₁₃₀.

It is a junction number, because it is equal to n+sod(n) for n = 314992 and 315010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 794.

It is an arithmetic number, because the mean of its divisors is an integer number (29050).

2³¹⁵⁰²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348600).

315020 is an abundant number, since it is smaller than the sum of its proper divisors (382180).

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

315020 is a wasteful number, since it uses less digits than its factorization.

315020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 315020 is about 561.2664251494. The cubic root of 315020 is about 68.0423611486.

Adding to 315020 its reverse (20513), we get a palindrome (335533).

The spelling of 315020 in words is "three hundred fifteen thousand, twenty".