163241237 has 2 divisors, whose sum is σ = 163241238. Its totient is φ = 163241236.

The previous prime is 163241231. The next prime is 163241263. The reversal of 163241237 is 732142361.

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., 152423716 + 10817521 = 12346^2 + 3289^2 .

It is an emirp because it is prime and its reverse (732142361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163241237 - 2²⁶ = 96132373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163241231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81620618 + 81620619.

It is an arithmetic number, because the mean of its divisors is an integer number (81620619).

Almost surely, 2^163241237 is an apocalyptic number.

It is an amenable number.

163241237 is a deficient number, since it is larger than the sum of its proper divisors (1).

163241237 is an equidigital number, since it uses as much as digits as its factorization.

163241237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 163241237 is about 12776.5894118892. The cubic root of 163241237 is about 546.5249070178.

Adding to 163241237 its reverse (732142361), we get a palindrome (895383598).

The spelling of 163241237 in words is "one hundred sixty-three million, two hundred forty-one thousand, two hundred thirty-seven".