814214749 has 2 divisors, whose sum is σ = 814214750. Its totient is φ = 814214748.

The previous prime is 814214747. The next prime is 814214831. The reversal of 814214749 is 947412418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446265625 + 367949124 = 21125^2 + 19182^2 .

It is a cyclic number.

It is not a de Polignac number, because 814214749 - 2¹ = 814214747 is a prime.

Together with 814214747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814214741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407107374 + 407107375.

It is an arithmetic number, because the mean of its divisors is an integer number (407107375).

Almost surely, 2^814214749 is an apocalyptic number.

It is an amenable number.

814214749 is a deficient number, since it is larger than the sum of its proper divisors (1).

814214749 is an equidigital number, since it uses as much as digits as its factorization.

814214749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 40.

The square root of 814214749 is about 28534.4484614650. The cubic root of 814214749 is about 933.7837709997.

The spelling of 814214749 in words is "eight hundred fourteen million, two hundred fourteen thousand, seven hundred forty-nine".