165232427 has 2 divisors, whose sum is σ = 165232428. Its totient is φ = 165232426.

The previous prime is 165232423. The next prime is 165232447. The reversal of 165232427 is 724232561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165232427 - 2² = 165232423 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 165232393 and 165232402.

It is not a weakly prime, because it can be changed into another prime (165232421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82616213 + 82616214.

It is an arithmetic number, because the mean of its divisors is an integer number (82616214).

Almost surely, 2^165232427 is an apocalyptic number.

165232427 is a deficient number, since it is larger than the sum of its proper divisors (1).

165232427 is an equidigital number, since it uses as much as digits as its factorization.

165232427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 165232427 is about 12854.2766035277. The cubic root of 165232427 is about 548.7380732252.

Adding to 165232427 its reverse (724232561), we get a palindrome (889464988).

The spelling of 165232427 in words is "one hundred sixty-five million, two hundred thirty-two thousand, four hundred twenty-seven".