315311041 has 4 divisors (see below), whose sum is σ = 319302400. Its totient is φ = 311319684.

The previous prime is 315311021. The next prime is 315311047. The reversal of 315311041 is 140113513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140113513 = 263 ⋅532751.

It is a cyclic number.

It is not a de Polignac number, because 315311041 - 2¹³ = 315302849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315311047) 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 3 ways as a sum of consecutive naturals, for example, 1995561 + ... + 1995718.

It is an arithmetic number, because the mean of its divisors is an integer number (79825600).

Almost surely, 2^315311041 is an apocalyptic number.

It is an amenable number.

315311041 is a deficient number, since it is larger than the sum of its proper divisors (3991359).

315311041 is an equidigital number, since it uses as much as digits as its factorization.

315311041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991358.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 315311041 is about 17756.9997747367. Note that the first 3 decimals coincide. The cubic root of 315311041 is about 680.6330904751.

Adding to 315311041 its reverse (140113513), we get a palindrome (455424554).

The spelling of 315311041 in words is "three hundred fifteen million, three hundred eleven thousand, forty-one".