312480283 has 2 divisors, whose sum is σ = 312480284. Its totient is φ = 312480282.

The previous prime is 312480263. The next prime is 312480319. The reversal of 312480283 is 382084213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312480283 - 2²¹ = 310383131 is a prime.

It is not a weakly prime, because it can be changed into another prime (312480263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156240141 + 156240142.

It is an arithmetic number, because the mean of its divisors is an integer number (156240142).

Almost surely, 2^312480283 is an apocalyptic number.

312480283 is a deficient number, since it is larger than the sum of its proper divisors (1).

312480283 is an equidigital number, since it uses as much as digits as its factorization.

312480283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 312480283 is about 17677.1118398906. Note that the first 3 decimals coincide. The cubic root of 312480283 is about 678.5901318026.

The spelling of 312480283 in words is "three hundred twelve million, four hundred eighty thousand, two hundred eighty-three".