162144503 has 4 divisors (see below), whose sum is σ = 169194288. Its totient is φ = 155094720.

The previous prime is 162144431. The next prime is 162144509. The reversal of 162144503 is 305441261.

162144503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305441261 = 17 ⋅17967133.

It is a cyclic number.

It is not a de Polignac number, because 162144503 - 2⁸ = 162144247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162144509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3524858 + ... + 3524903.

It is an arithmetic number, because the mean of its divisors is an integer number (42298572).

Almost surely, 2^162144503 is an apocalyptic number.

162144503 is a deficient number, since it is larger than the sum of its proper divisors (7049785).

162144503 is an equidigital number, since it uses as much as digits as its factorization.

162144503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049784.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 162144503 is about 12733.5974100016. The cubic root of 162144503 is about 545.2982157155.

Adding to 162144503 its reverse (305441261), we get a palindrome (467585764).

The spelling of 162144503 in words is "one hundred sixty-two million, one hundred forty-four thousand, five hundred three".