162101 has 4 divisors (see below), whose sum is σ = 163212. Its totient is φ = 160992.

The previous prime is 162091. The next prime is 162109. The reversal of 162101 is 101261.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101261 = 109 ⋅929.

It can be written as a sum of positive squares in 2 ways, for example, as 75076 + 87025 = 274^2 + 295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162101 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 (162109) 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, 296 + ... + 641.

It is an arithmetic number, because the mean of its divisors is an integer number (40803).

2¹⁶²¹⁰¹ is an apocalyptic number.

It is an amenable number.

162101 is a deficient number, since it is larger than the sum of its proper divisors (1111).

162101 is an equidigital number, since it uses as much as digits as its factorization.

162101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 162101 is about 402.6176846588. The cubic root of 162101 is about 54.5249443931.

Adding to 162101 its reverse (101261), we get a palindrome (263362).

The spelling of 162101 in words is "one hundred sixty-two thousand, one hundred one".