2149416729 has 20 divisors (see below), whose sum is σ = 3214924020. Its totient is φ = 1431129600.

The previous prime is 2149416727. The next prime is 2149416733. The reversal of 2149416729 is 9276149412.

It can be written as a sum of positive squares in 2 ways, for example, as 1125736704 + 1023680025 = 33552^2 + 31995^2 .

It is not a de Polignac number, because 2149416729 - 2¹ = 2149416727 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2149416727) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49129 + ... + 81929.

It is an arithmetic number, because the mean of its divisors is an integer number (160746201).

Almost surely, 2^2149416729 is an apocalyptic number.

It is an amenable number.

2149416729 is a deficient number, since it is larger than the sum of its proper divisors (1065507291).

2149416729 is an equidigital number, since it uses as much as digits as its factorization.

2149416729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33622 (or 33613 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2149416729 is about 46361.8024779020. The cubic root of 2149416729 is about 1290.5461559740.

The spelling of 2149416729 in words is "two billion, one hundred forty-nine million, four hundred sixteen thousand, seven hundred twenty-nine".