315112445 has 4 divisors (see below), whose sum is σ = 378134940. Its totient is φ = 252089952.

The previous prime is 315112433. The next prime is 315112481. The reversal of 315112445 is 544211513.

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 242300356 + 72812089 = 15566^2 + 8533^2 .

It is a cyclic number.

It is not a de Polignac number, because 315112445 - 2⁶ = 315112381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31511240 + ... + 31511249.

It is an arithmetic number, because the mean of its divisors is an integer number (94533735).

Almost surely, 2^315112445 is an apocalyptic number.

It is an amenable number.

315112445 is a deficient number, since it is larger than the sum of its proper divisors (63022495).

315112445 is an equidigital number, since it uses as much as digits as its factorization.

315112445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63022494.

The product of its digits is 2400, while the sum is 26.

The square root of 315112445 is about 17751.4068456559. The cubic root of 315112445 is about 680.4901634598.

Adding to 315112445 its reverse (544211513), we get a palindrome (859323958).

The spelling of 315112445 in words is "three hundred fifteen million, one hundred twelve thousand, four hundred forty-five".