299920913 has 2 divisors, whose sum is σ = 299920914. Its totient is φ = 299920912.

The previous prime is 299920903. The next prime is 299920981. The reversal of 299920913 is 319029992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211033729 + 88887184 = 14527^2 + 9428^2 .

It is a cyclic number.

It is not a de Polignac number, because 299920913 - 2¹² = 299916817 is a prime.

It is not a weakly prime, because it can be changed into another prime (299920903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149960456 + 149960457.

It is an arithmetic number, because the mean of its divisors is an integer number (149960457).

Almost surely, 2^299920913 is an apocalyptic number.

It is an amenable number.

299920913 is a deficient number, since it is larger than the sum of its proper divisors (1).

299920913 is an equidigital number, since it uses as much as digits as its factorization.

299920913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 299920913 is about 17318.2248801660. The cubic root of 299920913 is about 669.3741188635.

The spelling of 299920913 in words is "two hundred ninety-nine million, nine hundred twenty thousand, nine hundred thirteen".