315142230 has 64 divisors (see below), whose sum is σ = 816334848. Its totient is φ = 77400960.

The previous prime is 315142229. The next prime is 315142231. The reversal of 315142230 is 32241513.

It is an interprime number because it is at equal distance from previous prime (315142229) and next prime (315142231).

It is a junction number, because it is equal to n+sod(n) for n = 315142197 and 315142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315142231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345475 + ... + 346385.

It is an arithmetic number, because the mean of its divisors is an integer number (12755232).

Almost surely, 2^315142230 is an apocalyptic number.

315142230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 315142230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408167424).

315142230 is an abundant number, since it is smaller than the sum of its proper divisors (501192618).

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

315142230 is a wasteful number, since it uses less digits than its factorization.

315142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 315142230 is about 17752.2457734226. The cubic root of 315142230 is about 680.5116031726.

Adding to 315142230 its reverse (32241513), we get a palindrome (347383743).

The spelling of 315142230 in words is "three hundred fifteen million, one hundred forty-two thousand, two hundred thirty".