315564145 has 8 divisors (see below), whose sum is σ = 407806056. Its totient is φ = 233031936.

The previous prime is 315564121. The next prime is 315564199. The reversal of 315564145 is 541465513.

It can be written as a sum of positive squares in 4 ways, for example, as 28058209 + 287505936 = 5297^2 + 16956^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 315564145 - 2⁷ = 315564017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315564145.

It is an unprimeable number.

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, 2427352 + ... + 2427481.

It is an arithmetic number, because the mean of its divisors is an integer number (50975757).

Almost surely, 2^315564145 is an apocalyptic number.

It is an amenable number.

315564145 is a deficient number, since it is larger than the sum of its proper divisors (92241911).

315564145 is a wasteful number, since it uses less digits than its factorization.

315564145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854851.

The product of its digits is 36000, while the sum is 34.

The square root of 315564145 is about 17764.1252247331. The cubic root of 315564145 is about 680.8151592487.

The spelling of 315564145 in words is "three hundred fifteen million, five hundred sixty-four thousand, one hundred forty-five".