2159715251 has 2 divisors, whose sum is σ = 2159715252. Its totient is φ = 2159715250.

The previous prime is 2159715149. The next prime is 2159715253. The reversal of 2159715251 is 1525179512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2159715251 - 2¹⁴ = 2159698867 is a prime.

Together with 2159715253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2159715253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079857625 + 1079857626.

It is an arithmetic number, because the mean of its divisors is an integer number (1079857626).

Almost surely, 2^2159715251 is an apocalyptic number.

2159715251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159715251 is an equidigital number, since it uses as much as digits as its factorization.

2159715251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 38.

The square root of 2159715251 is about 46472.7366420356. The cubic root of 2159715251 is about 1292.6040084559.

The spelling of 2159715251 in words is "two billion, one hundred fifty-nine million, seven hundred fifteen thousand, two hundred fifty-one".