2149405529 has 2 divisors, whose sum is σ = 2149405530. Its totient is φ = 2149405528.

The previous prime is 2149405519. The next prime is 2149405541. The reversal of 2149405529 is 9255049412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1838694400 + 310711129 = 42880^2 + 17627^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149405529 - 2²⁰ = 2148356953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149405519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074702764 + 1074702765.

It is an arithmetic number, because the mean of its divisors is an integer number (1074702765).

Almost surely, 2^2149405529 is an apocalyptic number.

It is an amenable number.

2149405529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149405529 is an equidigital number, since it uses as much as digits as its factorization.

2149405529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 2149405529 is about 46361.6816886532. The cubic root of 2149405529 is about 1290.5439144136.

The spelling of 2149405529 in words is "two billion, one hundred forty-nine million, four hundred five thousand, five hundred twenty-nine".