106529681 has 4 divisors (see below), whose sum is σ = 107208372. Its totient is φ = 105850992.

The previous prime is 106529663. The next prime is 106529711. The reversal of 106529681 is 186925601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70829056 + 35700625 = 8416^2 + 5975^2 .

It is a cyclic number.

It is not a de Polignac number, because 106529681 - 2⁶ = 106529617 is a prime.

It is a super-2 number, since 2×106529681² = 22697145867923522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106529611) 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, 339110 + ... + 339423.

It is an arithmetic number, because the mean of its divisors is an integer number (26802093).

Almost surely, 2^106529681 is an apocalyptic number.

It is an amenable number.

106529681 is a deficient number, since it is larger than the sum of its proper divisors (678691).

106529681 is an equidigital number, since it uses as much as digits as its factorization.

106529681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678690.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 106529681 is about 10321.3216692437. The cubic root of 106529681 is about 474.0493355450.

Adding to 106529681 its product of nonzero digits (25920), we get a palindrome (106555601).

The spelling of 106529681 in words is "one hundred six million, five hundred twenty-nine thousand, six hundred eighty-one".