1632137161 has 2 divisors, whose sum is σ = 1632137162. Its totient is φ = 1632137160.

The previous prime is 1632137159. The next prime is 1632137179. The reversal of 1632137161 is 1617312361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968765625 + 663371536 = 31125^2 + 25756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1632137161 - 2¹ = 1632137159 is a prime.

Together with 1632137159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1632137141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816068580 + 816068581.

It is an arithmetic number, because the mean of its divisors is an integer number (816068581).

Almost surely, 2^1632137161 is an apocalyptic number.

It is an amenable number.

1632137161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632137161 is an equidigital number, since it uses as much as digits as its factorization.

1632137161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 1632137161 is about 40399.7173381201. The cubic root of 1632137161 is about 1177.3860458929.

The spelling of 1632137161 in words is "one billion, six hundred thirty-two million, one hundred thirty-seven thousand, one hundred sixty-one".