101796381 has 6 divisors (see below), whose sum is σ = 147039230. Its totient is φ = 67864248.

The previous prime is 101796379. The next prime is 101796397. The reversal of 101796381 is 183697101.

101796381 is a `hidden beast` number, since 1 + 0 + 17 + 9 + 638 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101002500 + 793881 = 10050^2 + 891^2 .

It is not a de Polignac number, because 101796381 - 2¹ = 101796379 is a prime.

It is a super-2 number, since 2×101796381² = 20725006369394322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101796311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5655346 + ... + 5655363.

Almost surely, 2^101796381 is an apocalyptic number.

It is an amenable number.

101796381 is a deficient number, since it is larger than the sum of its proper divisors (45242849).

101796381 is a wasteful number, since it uses less digits than its factorization.

101796381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310715 (or 11310712 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 101796381 is about 10089.4192597989. The cubic root of 101796381 is about 466.9217588905.

The spelling of 101796381 in words is "one hundred one million, seven hundred ninety-six thousand, three hundred eighty-one".