2721247153 has 2 divisors, whose sum is σ = 2721247154. Its totient is φ = 2721247152.

The previous prime is 2721247117. The next prime is 2721247183. The reversal of 2721247153 is 3517421272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2144430864 + 576816289 = 46308^2 + 24017^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721247153 - 2⁹ = 2721246641 is a prime.

It is not a weakly prime, because it can be changed into another prime (2721247183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360623576 + 1360623577.

It is an arithmetic number, because the mean of its divisors is an integer number (1360623577).

Almost surely, 2^2721247153 is an apocalyptic number.

It is an amenable number.

2721247153 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721247153 is an equidigital number, since it uses as much as digits as its factorization.

2721247153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 34.

The square root of 2721247153 is about 52165.5744049656. The cubic root of 2721247153 is about 1396.1197234575.

The spelling of 2721247153 in words is "two billion, seven hundred twenty-one million, two hundred forty-seven thousand, one hundred fifty-three".