315140222 has 8 divisors (see below), whose sum is σ = 472949400. Its totient is φ = 157490424.

The previous prime is 315140219. The next prime is 315140233. The reversal of 315140222 is 222041513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 315140194 and 315140203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34772 + ... + 42887.

It is an arithmetic number, because the mean of its divisors is an integer number (59118675).

Almost surely, 2^315140222 is an apocalyptic number.

315140222 is a deficient number, since it is larger than the sum of its proper divisors (157809178).

315140222 is a wasteful number, since it uses less digits than its factorization.

315140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79690.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 315140222 is about 17752.1892171078. The cubic root of 315140222 is about 680.5101578250.

Adding to 315140222 its reverse (222041513), we get a palindrome (537181735).

The spelling of 315140222 in words is "three hundred fifteen million, one hundred forty thousand, two hundred twenty-two".