101665443 has 8 divisors (see below), whose sum is σ = 147877056. Its totient is φ = 61615400.

The previous prime is 101665439. The next prime is 101665453. The reversal of 101665443 is 344566101.

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

It is not a de Polignac number, because 101665443 - 2² = 101665439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101665443.

It is not an unprimeable number, because it can be changed into a prime (101665453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540353 + ... + 1540418.

It is an arithmetic number, because the mean of its divisors is an integer number (18484632).

Almost surely, 2^101665443 is an apocalyptic number.

101665443 is a deficient number, since it is larger than the sum of its proper divisors (46211613).

101665443 is a wasteful number, since it uses less digits than its factorization.

101665443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080785.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 101665443 is about 10082.9282948953. The cubic root of 101665443 is about 466.7214766122.

The spelling of 101665443 in words is "one hundred one million, six hundred sixty-five thousand, four hundred forty-three".