313462021 has 4 divisors (see below), whose sum is σ = 314142444. Its totient is φ = 312781600.

The previous prime is 313462013. The next prime is 313462067. The reversal of 313462021 is 120264313.

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 50211396 + 263250625 = 7086^2 + 16225^2 .

It is a cyclic number.

It is not a de Polignac number, because 313462021 - 2³ = 313462013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313461983 and 313462001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313462001) 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, 339520 + ... + 340441.

It is an arithmetic number, because the mean of its divisors is an integer number (78535611).

Almost surely, 2^313462021 is an apocalyptic number.

It is an amenable number.

313462021 is a deficient number, since it is larger than the sum of its proper divisors (680423).

313462021 is an equidigital number, since it uses as much as digits as its factorization.

313462021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680422.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 313462021 is about 17704.8586834236. The cubic root of 313462021 is about 679.3000446009.

The spelling of 313462021 in words is "three hundred thirteen million, four hundred sixty-two thousand, twenty-one".