2152161629 has 2 divisors, whose sum is σ = 2152161630. Its totient is φ = 2152161628.

The previous prime is 2152161623. The next prime is 2152161677. The reversal of 2152161629 is 9261612512.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134679225 + 1017482404 = 33685^2 + 31898^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152161629 - 2²⁰ = 2151113053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152161623) 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, 1076080814 + 1076080815.

It is an arithmetic number, because the mean of its divisors is an integer number (1076080815).

Almost surely, 2^2152161629 is an apocalyptic number.

It is an amenable number.

2152161629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152161629 is an equidigital number, since it uses as much as digits as its factorization.

2152161629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 2152161629 is about 46391.3960665122. The cubic root of 2152161629 is about 1291.0952837478.

The spelling of 2152161629 in words is "two billion, one hundred fifty-two million, one hundred sixty-one thousand, six hundred twenty-nine".