106513742681 has 4 divisors (see below), whose sum is σ = 106528972452. Its totient is φ = 106498512912.

The previous prime is 106513742677. The next prime is 106513742717. The reversal of 106513742681 is 186247315601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186247315601 = 569 ⋅327323929.

It can be written as a sum of positive squares in 2 ways, for example, as 26004787600 + 80508955081 = 161260^2 + 283741^2 .

It is a cyclic number.

It is not a de Polignac number, because 106513742681 - 2² = 106513742677 is a prime.

It is a super-2 number, since 2×106513742681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106513742381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7604390 + ... + 7618383.

It is an arithmetic number, because the mean of its divisors is an integer number (26632243113).

Almost surely, 2^106513742681 is an apocalyptic number.

It is an amenable number.

106513742681 is a deficient number, since it is larger than the sum of its proper divisors (15229771).

106513742681 is an equidigital number, since it uses as much as digits as its factorization.

106513742681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15229770.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 106513742681 in words is "one hundred six billion, five hundred thirteen million, seven hundred forty-two thousand, six hundred eighty-one".