162543603 has 4 divisors (see below), whose sum is σ = 216724808. Its totient is φ = 108362400.

The previous prime is 162543559. The next prime is 162543659. The reversal of 162543603 is 306345261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306345261 = 3 ⋅102115087.

It is not a de Polignac number, because 162543603 - 2⁶ = 162543539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162543673) 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, 27090598 + ... + 27090603.

It is an arithmetic number, because the mean of its divisors is an integer number (54181202).

Almost surely, 2^162543603 is an apocalyptic number.

162543603 is a deficient number, since it is larger than the sum of its proper divisors (54181205).

162543603 is an equidigital number, since it uses as much as digits as its factorization.

162543603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54181204.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 162543603 is about 12749.2589196392. The cubic root of 162543603 is about 545.7452453748.

Adding to 162543603 its reverse (306345261), we get a palindrome (468888864).

The spelling of 162543603 in words is "one hundred sixty-two million, five hundred forty-three thousand, six hundred three".