315303142 has 24 divisors (see below), whose sum is σ = 600189480. Its totient is φ = 122844960.

The previous prime is 315303127. The next prime is 315303143. The reversal of 315303142 is 241303513.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315303143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145167 + ... + 147322.

It is an arithmetic number, because the mean of its divisors is an integer number (25007895).

Almost surely, 2^315303142 is an apocalyptic number.

315303142 is a deficient number, since it is larger than the sum of its proper divisors (284886338).

315303142 is a wasteful number, since it uses less digits than its factorization.

315303142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292516 (or 292509 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 315303142 is about 17756.7773540133. Note that the first 3 decimals coincide. The cubic root of 315303142 is about 680.6274068114.

Adding to 315303142 its reverse (241303513), we get a palindrome (556606655).

The spelling of 315303142 in words is "three hundred fifteen million, three hundred three thousand, one hundred forty-two".