162445431 has 4 divisors (see below), whose sum is σ = 216593912. Its totient is φ = 108296952.

The previous prime is 162445427. The next prime is 162445447. The reversal of 162445431 is 134544261.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 162445431 - 2² = 162445427 is a prime.

It is a super-2 number, since 2×162445431² = 52777036105551522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162445531) 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 in 3 ways as a sum of consecutive naturals, for example, 27074236 + ... + 27074241.

It is an arithmetic number, because the mean of its divisors is an integer number (54148478).

Almost surely, 2^162445431 is an apocalyptic number.

162445431 is a deficient number, since it is larger than the sum of its proper divisors (54148481).

162445431 is an equidigital number, since it uses as much as digits as its factorization.

162445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54148480.

The product of its digits is 11520, while the sum is 30.

The square root of 162445431 is about 12745.4082319869. The cubic root of 162445431 is about 545.6353513911.

Adding to 162445431 its reverse (134544261), we get a palindrome (296989692).

The spelling of 162445431 in words is "one hundred sixty-two million, four hundred forty-five thousand, four hundred thirty-one".