2149646743 has 2 divisors, whose sum is σ = 2149646744. Its totient is φ = 2149646742.

The previous prime is 2149646717. The next prime is 2149646749. The reversal of 2149646743 is 3476469412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2149646743 - 2²⁹ = 1612775831 is a prime.

It is a super-2 number, since 2×2149646743² = 9241962239381016098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2149646693 and 2149646702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149646749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074823371 + 1074823372.

It is an arithmetic number, because the mean of its divisors is an integer number (1074823372).

Almost surely, 2^2149646743 is an apocalyptic number.

2149646743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149646743 is an equidigital number, since it uses as much as digits as its factorization.

2149646743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The square root of 2149646743 is about 46364.2830527983. The cubic root of 2149646743 is about 1290.5921890972.

The spelling of 2149646743 in words is "two billion, one hundred forty-nine million, six hundred forty-six thousand, seven hundred forty-three".