333129949 has 2 divisors, whose sum is σ = 333129950. Its totient is φ = 333129948.

The previous prime is 333129899. The next prime is 333130013. The reversal of 333129949 is 949921333.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243921924 + 89208025 = 15618^2 + 9445^2 .

It is a cyclic number.

It is not a de Polignac number, because 333129949 - 2¹⁵ = 333097181 is a prime.

It is a super-2 number, since 2×333129949² = 221951125841485202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (333123949) 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, 166564974 + 166564975.

It is an arithmetic number, because the mean of its divisors is an integer number (166564975).

Almost surely, 2^333129949 is an apocalyptic number.

It is an amenable number.

333129949 is a deficient number, since it is larger than the sum of its proper divisors (1).

333129949 is an equidigital number, since it uses as much as digits as its factorization.

333129949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 43.

The square root of 333129949 is about 18251.8478242615. The cubic root of 333129949 is about 693.2202268393.

The spelling of 333129949 in words is "three hundred thirty-three million, one hundred twenty-nine thousand, nine hundred forty-nine".