312484213 has 4 divisors (see below), whose sum is σ = 314120448. Its totient is φ = 310847980.

The previous prime is 312484201. The next prime is 312484217.

312484213 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 312484213 - 2²¹ = 310387061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312484217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817831 + ... + 818212.

It is an arithmetic number, because the mean of its divisors is an integer number (78530112).

Almost surely, 2^312484213 is an apocalyptic number.

It is an amenable number.

312484213 is a deficient number, since it is larger than the sum of its proper divisors (1636235).

312484213 is a wasteful number, since it uses less digits than its factorization.

312484213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636234.

The product of its digits is 4608, while the sum is 28.

The square root of 312484213 is about 17677.2230002339. The cubic root of 312484213 is about 678.5929766200.

The spelling of 312484213 in words is "three hundred twelve million, four hundred eighty-four thousand, two hundred thirteen".