311214847 has 2 divisors, whose sum is σ = 311214848. Its totient is φ = 311214846.

The previous prime is 311214791. The next prime is 311214857. The reversal of 311214847 is 748412113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311214847 - 2⁷ = 311214719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311214857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155607423 + 155607424.

It is an arithmetic number, because the mean of its divisors is an integer number (155607424).

Almost surely, 2^311214847 is an apocalyptic number.

311214847 is a deficient number, since it is larger than the sum of its proper divisors (1).

311214847 is an equidigital number, since it uses as much as digits as its factorization.

311214847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 311214847 is about 17641.2824647189. The cubic root of 311214847 is about 677.6728748262.

The spelling of 311214847 in words is "three hundred eleven million, two hundred fourteen thousand, eight hundred forty-seven".