101006 has 4 divisors (see below), whose sum is σ = 151512. Its totient is φ = 50502.

The previous prime is 100999. The next prime is 101009. The reversal of 101006 is 600101.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 100984 and 101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101009) by changing a digit.

101006 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25250 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (37878).

2¹⁰¹⁰⁰⁶ is an apocalyptic number.

101006 is a deficient number, since it is larger than the sum of its proper divisors (50506).

101006 is an equidigital number, since it uses as much as digits as its factorization.

101006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50505.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 101006 is about 317.8144112529. The cubic root of 101006 is about 46.5710172399.

Adding to 101006 its reverse (600101), we get a palindrome (701107).

The spelling of 101006 in words is "one hundred one thousand, six".