161837063 has 2 divisors, whose sum is σ = 161837064. Its totient is φ = 161837062.

The previous prime is 161837029. The next prime is 161837069. The reversal of 161837063 is 360738161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161837063 - 2¹² = 161832967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161837069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80918531 + 80918532.

It is an arithmetic number, because the mean of its divisors is an integer number (80918532).

Almost surely, 2^161837063 is an apocalyptic number.

161837063 is a deficient number, since it is larger than the sum of its proper divisors (1).

161837063 is an equidigital number, since it uses as much as digits as its factorization.

161837063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 161837063 is about 12721.5196812331. The cubic root of 161837063 is about 544.9533534691.

The spelling of 161837063 in words is "one hundred sixty-one million, eight hundred thirty-seven thousand, sixty-three".