101640773 has 8 divisors (see below), whose sum is σ = 115898328. Its totient is φ = 88303104.

The previous prime is 101640761. The next prime is 101640779. The reversal of 101640773 is 377046101.

It can be written as a sum of positive squares in 4 ways, for example, as 29084449 + 72556324 = 5393^2 + 8518^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101640773 - 2²⁰ = 100592197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101640779) 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, 229736 + ... + 230177.

It is an arithmetic number, because the mean of its divisors is an integer number (14487291).

Almost surely, 2^101640773 is an apocalyptic number.

101640773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101640773 is a deficient number, since it is larger than the sum of its proper divisors (14257555).

101640773 is a wasteful number, since it uses less digits than its factorization.

101640773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459943.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 101640773 is about 10081.7048657457. The cubic root of 101640773 is about 466.6837222225.

Adding to 101640773 its reverse (377046101), we get a palindrome (478686874).

The spelling of 101640773 in words is "one hundred one million, six hundred forty thousand, seven hundred seventy-three".