2156246467 has 2 divisors, whose sum is σ = 2156246468. Its totient is φ = 2156246466.

The previous prime is 2156246453. The next prime is 2156246489. The reversal of 2156246467 is 7646426512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2156246467 is a prime.

It is not a weakly prime, because it can be changed into another prime (2156246167) 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, 1078123233 + 1078123234.

It is an arithmetic number, because the mean of its divisors is an integer number (1078123234).

Almost surely, 2^2156246467 is an apocalyptic number.

2156246467 is a deficient number, since it is larger than the sum of its proper divisors (1).

2156246467 is an equidigital number, since it uses as much as digits as its factorization.

2156246467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

The square root of 2156246467 is about 46435.4010104360. The cubic root of 2156246467 is about 1291.9116074942.

The spelling of 2156246467 in words is "two billion, one hundred fifty-six million, two hundred forty-six thousand, four hundred sixty-seven".