162100203 has 8 divisors (see below), whose sum is σ = 216455568. Its totient is φ = 107905824.

The previous prime is 162100193. The next prime is 162100231. The reversal of 162100203 is 302001261.

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

It is not a de Polignac number, because 162100203 - 2¹⁸ = 161838059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162100303) 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 7 ways as a sum of consecutive naturals, for example, 37876 + ... + 41937.

It is an arithmetic number, because the mean of its divisors is an integer number (27056946).

Almost surely, 2^162100203 is an apocalyptic number.

162100203 is a deficient number, since it is larger than the sum of its proper divisors (54355365).

162100203 is an equidigital number, since it uses as much as digits as its factorization.

162100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80493.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 162100203 is about 12731.8577984519. The cubic root of 162100203 is about 545.2485503227.

Adding to 162100203 its reverse (302001261), we get a palindrome (464101464).

The spelling of 162100203 in words is "one hundred sixty-two million, one hundred thousand, two hundred three".