162431 has 8 divisors (see below), whose sum is σ = 174720. Its totient is φ = 150552.

The previous prime is 162419. The next prime is 162439. The reversal of 162431 is 134261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162431 - 2¹⁰ = 161407 is a prime.

It is a super-2 number, since 2×162431² = 52767659522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2¹⁶²⁴³¹ is an apocalyptic number.

162431 is a deficient number, since it is larger than the sum of its proper divisors (12289).

162431 is a wasteful number, since it uses less digits than its factorization.

162431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 144, while the sum is 17.

The square root of 162431 is about 403.0272943611. The cubic root of 162431 is about 54.5619193561.

Adding to 162431 its reverse (134261), we get a palindrome (296692).

The spelling of 162431 in words is "one hundred sixty-two thousand, four hundred thirty-one".