165014431 has 2 divisors, whose sum is σ = 165014432. Its totient is φ = 165014430.

The previous prime is 165014429. The next prime is 165014441. The reversal of 165014431 is 134410561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165014431 - 2¹ = 165014429 is a prime.

It is a super-2 number, since 2×165014431² = 54459524876507522, which contains 22 as substring.

Together with 165014429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 165014396 and 165014405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165014441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82507215 + 82507216.

It is an arithmetic number, because the mean of its divisors is an integer number (82507216).

Almost surely, 2^165014431 is an apocalyptic number.

165014431 is a deficient number, since it is larger than the sum of its proper divisors (1).

165014431 is an equidigital number, since it uses as much as digits as its factorization.

165014431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 165014431 is about 12845.7942922966. The cubic root of 165014431 is about 548.4966449273.

Adding to 165014431 its reverse (134410561), we get a palindrome (299424992).

The spelling of 165014431 in words is "one hundred sixty-five million, fourteen thousand, four hundred thirty-one".