299374681 has 2 divisors, whose sum is σ = 299374682. Its totient is φ = 299374680.

The previous prime is 299374651. The next prime is 299374717. The reversal of 299374681 is 186473992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299290000 + 84681 = 17300^2 + 291^2 .

It is a cyclic number.

It is not a de Polignac number, because 299374681 - 2²¹ = 297277529 is a prime.

It is a super-2 number, since 2×299374681² = 179250399247703522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (299374651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149687340 + 149687341.

It is an arithmetic number, because the mean of its divisors is an integer number (149687341).

Almost surely, 2^299374681 is an apocalyptic number.

It is an amenable number.

299374681 is a deficient number, since it is larger than the sum of its proper divisors (1).

299374681 is an equidigital number, since it uses as much as digits as its factorization.

299374681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The square root of 299374681 is about 17302.4472546516. The cubic root of 299374681 is about 668.9675052718.

The spelling of 299374681 in words is "two hundred ninety-nine million, three hundred seventy-four thousand, six hundred eighty-one".