3129990229 has 2 divisors, whose sum is σ = 3129990230. Its totient is φ = 3129990228.

The previous prime is 3129990221. The next prime is 3129990293. The reversal of 3129990229 is 9220999213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3127829329 + 2160900 = 55927^2 + 1470^2 .

It is an emirp because it is prime and its reverse (9220999213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3129990229 - 2³ = 3129990221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3129990221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564995114 + 1564995115.

It is an arithmetic number, because the mean of its divisors is an integer number (1564995115).

Almost surely, 2^3129990229 is an apocalyptic number.

It is an amenable number.

3129990229 is a deficient number, since it is larger than the sum of its proper divisors (1).

3129990229 is an equidigital number, since it uses as much as digits as its factorization.

3129990229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 3129990229 is about 55946.3155980803. The cubic root of 3129990229 is about 1462.7866695364.

The spelling of 3129990229 in words is "three billion, one hundred twenty-nine million, nine hundred ninety thousand, two hundred twenty-nine".