315145122 has 8 divisors (see below), whose sum is σ = 630290256. Its totient is φ = 105048372.

The previous prime is 315145097. The next prime is 315145123. The reversal of 315145122 is 221541513.

It is a happy number.

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

315145122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 315145092 and 315145101.

It is not an unprimeable number, because it can be changed into a prime (315145123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26262088 + ... + 26262099.

It is an arithmetic number, because the mean of its divisors is an integer number (78786282).

Almost surely, 2^315145122 is an apocalyptic number.

315145122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

315145122 is a wasteful number, since it uses less digits than its factorization.

315145122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52524192.

The product of its digits is 1200, while the sum is 24.

The square root of 315145122 is about 17752.3272277186. The cubic root of 315145122 is about 680.5136848078.

Adding to 315145122 its reverse (221541513), we get a palindrome (536686635).

The spelling of 315145122 in words is "three hundred fifteen million, one hundred forty-five thousand, one hundred twenty-two".