162641603 has 4 divisors (see below), whose sum is σ = 167037360. Its totient is φ = 158245848.

The previous prime is 162641581. The next prime is 162641621. The reversal of 162641603 is 306146261.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 162641603 - 2¹⁴ = 162625219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162641693) 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, 2197823 + ... + 2197896.

It is an arithmetic number, because the mean of its divisors is an integer number (41759340).

Almost surely, 2^162641603 is an apocalyptic number.

162641603 is a deficient number, since it is larger than the sum of its proper divisors (4395757).

162641603 is an equidigital number, since it uses as much as digits as its factorization.

162641603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395756.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 162641603 is about 12753.1017011549. The cubic root of 162641603 is about 545.8549026977.

Adding to 162641603 its reverse (306146261), we get a palindrome (468787864).

The spelling of 162641603 in words is "one hundred sixty-two million, six hundred forty-one thousand, six hundred three".