315012322 has 4 divisors (see below), whose sum is σ = 472518486. Its totient is φ = 157506160.

The previous prime is 315012319. The next prime is 315012323. The reversal of 315012322 is 223210513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223210513 = 7127 ⋅31319.

It can be written as a sum of positive squares in only one way, i.e., 294843241 + 20169081 = 17171^2 + 4491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315012322.

It is not an unprimeable number, because it can be changed into a prime (315012323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78753079 + ... + 78753082.

Almost surely, 2^315012322 is an apocalyptic number.

315012322 is a deficient number, since it is larger than the sum of its proper divisors (157506164).

315012322 is a wasteful number, since it uses less digits than its factorization.

315012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157506163.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 315012322 is about 17748.5864789284. The cubic root of 315012322 is about 680.4180834398.

Adding to 315012322 its reverse (223210513), we get a palindrome (538222835).

The spelling of 315012322 in words is "three hundred fifteen million, twelve thousand, three hundred twenty-two".