106247681 has 8 divisors (see below), whose sum is σ = 107568384. Its totient is φ = 104934960.

The previous prime is 106247651. The next prime is 106247699. The reversal of 106247681 is 186742601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106247681 is a prime.

It is a super-2 number, since 2×106247681² = 22577139435755522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106247611) 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 7 ways as a sum of consecutive naturals, for example, 27395 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (13446048).

Almost surely, 2^106247681 is an apocalyptic number.

It is an amenable number.

106247681 is a deficient number, since it is larger than the sum of its proper divisors (1320703).

106247681 is a wasteful number, since it uses less digits than its factorization.

106247681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 106247681 is about 10307.6515754075. The cubic root of 106247681 is about 473.6306727404.

The spelling of 106247681 in words is "one hundred six million, two hundred forty-seven thousand, six hundred eighty-one".