2621352161 has 2 divisors, whose sum is σ = 2621352162. Its totient is φ = 2621352160.

The previous prime is 2621352101. The next prime is 2621352199. The reversal of 2621352161 is 1612531262.

2621352161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2595291136 + 26061025 = 50944^2 + 5105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2621352161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2621352101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310676080 + 1310676081.

It is an arithmetic number, because the mean of its divisors is an integer number (1310676081).

Almost surely, 2^2621352161 is an apocalyptic number.

It is an amenable number.

2621352161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621352161 is an equidigital number, since it uses as much as digits as its factorization.

2621352161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 2621352161 is about 51199.1421900797. The cubic root of 2621352161 is about 1378.8228007820.

The spelling of 2621352161 in words is "two billion, six hundred twenty-one million, three hundred fifty-two thousand, one hundred sixty-one".