163232137 has 2 divisors, whose sum is σ = 163232138. Its totient is φ = 163232136.

The previous prime is 163232131. The next prime is 163232149. The reversal of 163232137 is 731232361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143304841 + 19927296 = 11971^2 + 4464^2 .

It is a cyclic number.

It is not a de Polignac number, because 163232137 - 2²³ = 154843529 is a prime.

It is not a weakly prime, because it can be changed into another prime (163232131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81616068 + 81616069.

It is an arithmetic number, because the mean of its divisors is an integer number (81616069).

Almost surely, 2^163232137 is an apocalyptic number.

It is an amenable number.

163232137 is a deficient number, since it is larger than the sum of its proper divisors (1).

163232137 is an equidigital number, since it uses as much as digits as its factorization.

163232137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 163232137 is about 12776.2332868495. The cubic root of 163232137 is about 546.5147513546.

Adding to 163232137 its reverse (731232361), we get a palindrome (894464498).

It can be divided in two parts, 16 and 3232137, that added together give a triangular number (3232153 = T₂₅₄₂).

The spelling of 163232137 in words is "one hundred sixty-three million, two hundred thirty-two thousand, one hundred thirty-seven".