315340145 has 4 divisors (see below), whose sum is σ = 378408180. Its totient is φ = 252272112.

The previous prime is 315340141. The next prime is 315340163. The reversal of 315340145 is 541043513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46117681 + 269222464 = 6791^2 + 16408^2 .

It is a cyclic number.

It is not a de Polignac number, because 315340145 - 2² = 315340141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315340141) 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, 31534010 + ... + 31534019.

It is an arithmetic number, because the mean of its divisors is an integer number (94602045).

Almost surely, 2^315340145 is an apocalyptic number.

It is an amenable number.

315340145 is a deficient number, since it is larger than the sum of its proper divisors (63068035).

315340145 is an equidigital number, since it uses as much as digits as its factorization.

315340145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63068034.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 315340145 is about 17757.8192636371. The cubic root of 315340145 is about 680.6540312113.

Adding to 315340145 its reverse (541043513), we get a palindrome (856383658).

The spelling of 315340145 in words is "three hundred fifteen million, three hundred forty thousand, one hundred forty-five".