2159076949 has 2 divisors, whose sum is σ = 2159076950. Its totient is φ = 2159076948.

The previous prime is 2159076889. The next prime is 2159076961. The reversal of 2159076949 is 9496709512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2048196049 + 110880900 = 45257^2 + 10530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2159076949 - 2¹¹ = 2159074901 is a prime.

It is a super-2 number, since 2×2159076949² = 9323226543406297202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2159076896 and 2159076905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2159076979) 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, 1079538474 + 1079538475.

It is an arithmetic number, because the mean of its divisors is an integer number (1079538475).

Almost surely, 2^2159076949 is an apocalyptic number.

It is an amenable number.

2159076949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159076949 is an equidigital number, since it uses as much as digits as its factorization.

2159076949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 2159076949 is about 46465.8686457060. The cubic root of 2159076949 is about 1292.4766532378.

The spelling of 2159076949 in words is "two billion, one hundred fifty-nine million, seventy-six thousand, nine hundred forty-nine".