3129460849 has 2 divisors, whose sum is σ = 3129460850. Its totient is φ = 3129460848.

The previous prime is 3129460813. The next prime is 3129460909. The reversal of 3129460849 is 9480649213.

3129460849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3054551824 + 74909025 = 55268^2 + 8655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3129460849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3129460799 and 3129460808.

It is not a weakly prime, because it can be changed into another prime (3129410849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564730424 + 1564730425.

It is an arithmetic number, because the mean of its divisors is an integer number (1564730425).

Almost surely, 2^3129460849 is an apocalyptic number.

It is an amenable number.

3129460849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3129460849 is an equidigital number, since it uses as much as digits as its factorization.

3129460849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 3129460849 is about 55941.5842553641. The cubic root of 3129460849 is about 1462.7041971098.

The spelling of 3129460849 in words is "three billion, one hundred twenty-nine million, four hundred sixty thousand, eight hundred forty-nine".