315494145 has 36 divisors (see below), whose sum is σ = 577182996. Its totient is φ = 159399360.

The previous prime is 315494131. The next prime is 315494147. The reversal of 315494145 is 541494513.

It is a happy number.

315494145 is a `hidden beast` number, since 31 + 549 + 41 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 233356176 + 82137969 = 15276^2 + 9063^2 .

It is not a de Polignac number, because 315494145 - 2⁴ = 315494129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315494147) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6535 + ... + 25955.

It is an arithmetic number, because the mean of its divisors is an integer number (16032861).

Almost surely, 2^315494145 is an apocalyptic number.

It is an amenable number.

315494145 is a deficient number, since it is larger than the sum of its proper divisors (261688851).

315494145 is a wasteful number, since it uses less digits than its factorization.

315494145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19448 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 315494145 is about 17762.1548523821. The cubic root of 315494145 is about 680.7648149302.

The spelling of 315494145 in words is "three hundred fifteen million, four hundred ninety-four thousand, one hundred forty-five".