312948286249 has 2 divisors, whose sum is σ = 312948286250. Its totient is φ = 312948286248.

The previous prime is 312948286243. The next prime is 312948286297. The reversal of 312948286249 is 942682849213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213444000000 + 99504286249 = 462000^2 + 315443^2 .

It is a cyclic number.

It is not a de Polignac number, because 312948286249 - 2³ = 312948286241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312948286193 and 312948286202.

It is not a weakly prime, because it can be changed into another prime (312948286241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156474143124 + 156474143125.

It is an arithmetic number, because the mean of its divisors is an integer number (156474143125).

Almost surely, 2^312948286249 is an apocalyptic number.

It is an amenable number.

312948286249 is a deficient number, since it is larger than the sum of its proper divisors (1).

312948286249 is an equidigital number, since it uses as much as digits as its factorization.

312948286249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11943936, while the sum is 58.

The spelling of 312948286249 in words is "three hundred twelve billion, nine hundred forty-eight million, two hundred eighty-six thousand, two hundred forty-nine".