101189 has 4 divisors (see below), whose sum is σ = 110400. Its totient is φ = 91980.

The previous prime is 101183. The next prime is 101197. The reversal of 101189 is 981101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101189 - 2⁴ = 101173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101183) 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, 4589 + ... + 4610.

It is an arithmetic number, because the mean of its divisors is an integer number (27600).

2¹⁰¹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

101189 is a deficient number, since it is larger than the sum of its proper divisors (9211).

101189 is an equidigital number, since it uses as much as digits as its factorization.

101189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 101189 is about 318.1021848400. The cubic root of 101189 is about 46.5991256506.

The spelling of 101189 in words is "one hundred one thousand, one hundred eighty-nine".