101969 has 6 divisors (see below), whose sum is σ = 118674. Its totient is φ = 87360.

The previous prime is 101963. The next prime is 101977. The reversal of 101969 is 969101.

It can be written as a sum of positive squares in only one way, i.e., 82369 + 19600 = 287^2 + 140^2 .

It is not a de Polignac number, because 101969 - 2¹⁶ = 36433 is a prime.

It is a super-2 number, since 2×101969² = 20795353922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 992 + ... + 1089.

It is an arithmetic number, because the mean of its divisors is an integer number (19779).

2¹⁰¹⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

101969 is a deficient number, since it is larger than the sum of its proper divisors (16705).

101969 is an equidigital number, since it uses as much as digits as its factorization.

101969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2088 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 101969 is about 319.3258523828. The cubic root of 101969 is about 46.7185533990.

The spelling of 101969 in words is "one hundred one thousand, nine hundred sixty-nine".