312204479 has 2 divisors, whose sum is σ = 312204480. Its totient is φ = 312204478.

The previous prime is 312204383. The next prime is 312204509. The reversal of 312204479 is 974402213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312204479 is a prime.

It is a super-2 number, since 2×312204479² = 194943273415322882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312200479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156102239 + 156102240.

It is an arithmetic number, because the mean of its divisors is an integer number (156102240).

Almost surely, 2^312204479 is an apocalyptic number.

312204479 is a deficient number, since it is larger than the sum of its proper divisors (1).

312204479 is an equidigital number, since it uses as much as digits as its factorization.

312204479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 312204479 is about 17669.3089564929. The cubic root of 312204479 is about 678.3904253747.

The spelling of 312204479 in words is "three hundred twelve million, two hundred four thousand, four hundred seventy-nine".