313281084469 has 4 divisors (see below), whose sum is σ = 321748140844. Its totient is φ = 304814028096.

The previous prime is 313281084449. The next prime is 313281084497. The reversal of 313281084469 is 964480182313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964480182313 = 739 ⋅1305115267.

It can be written as a sum of positive squares in 2 ways, for example, as 172702580625 + 140578503844 = 415575^2 + 374938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313281084469 is a prime.

It is a super-2 number, since 2×313281084469² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313281084449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4233528132 + ... + 4233528205.

It is an arithmetic number, because the mean of its divisors is an integer number (80437035211).

Almost surely, 2^313281084469 is an apocalyptic number.

It is an amenable number.

313281084469 is a deficient number, since it is larger than the sum of its proper divisors (8467056375).

313281084469 is an equidigital number, since it uses as much as digits as its factorization.

313281084469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467056374.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 313281084469 in words is "three hundred thirteen billion, two hundred eighty-one million, eighty-four thousand, four hundred sixty-nine".