315144222 has 16 divisors (see below), whose sum is σ = 663461760. Its totient is φ = 99519192.

The previous prime is 315144217. The next prime is 315144223. The reversal of 315144222 is 222441513.

It is a junction number, because it is equal to n+sod(n) for n = 315144192 and 315144201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315144223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382098 + ... + 1382325.

It is an arithmetic number, because the mean of its divisors is an integer number (41466360).

Almost surely, 2^315144222 is an apocalyptic number.

315144222 is an abundant number, since it is smaller than the sum of its proper divisors (348317538).

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

315144222 is a wasteful number, since it uses less digits than its factorization.

315144222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764447.

The product of its digits is 1920, while the sum is 24.

The square root of 315144222 is about 17752.3018789114. The cubic root of 315144222 is about 680.5130369974.

Adding to 315144222 its reverse (222441513), we get a palindrome (537585735).

The spelling of 315144222 in words is "three hundred fifteen million, one hundred forty-four thousand, two hundred twenty-two".