315044545 has 8 divisors (see below), whose sum is σ = 391089960. Its totient is φ = 243344640.

The previous prime is 315044507. The next prime is 315044549. The reversal of 315044545 is 545440513.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90554256 + 224490289 = 9516^2 + 14983^2 .

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

It is not a de Polignac number, because 315044545 - 2⁹ = 315044033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315044549) by changing a digit.

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, 1086216 + ... + 1086505.

It is an arithmetic number, because the mean of its divisors is an integer number (48886245).

Almost surely, 2^315044545 is an apocalyptic number.

It is an amenable number.

315044545 is a deficient number, since it is larger than the sum of its proper divisors (76045415).

315044545 is a wasteful number, since it uses less digits than its factorization.

315044545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172755.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 315044545 is about 17749.4942181460. The cubic root of 315044545 is about 680.4412829178.

The spelling of 315044545 in words is "three hundred fifteen million, forty-four thousand, five hundred forty-five".