106725639 has 8 divisors (see below), whose sum is σ = 142928640. Its totient is φ = 70836536.

The previous prime is 106725637. The next prime is 106725659. The reversal of 106725639 is 936527601.

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 106725639 - 2¹ = 106725637 is a prime.

It is a super-2 number, since 2×106725639² = 22780724039916642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106725597 and 106725606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106725637) 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, 77679 + ... + 79040.

It is an arithmetic number, because the mean of its divisors is an integer number (17866080).

Almost surely, 2^106725639 is an apocalyptic number.

106725639 is a deficient number, since it is larger than the sum of its proper divisors (36203001).

106725639 is a wasteful number, since it uses less digits than its factorization.

106725639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156949.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 106725639 is about 10330.8101812007. The cubic root of 106725639 is about 474.3398237876.

The spelling of 106725639 in words is "one hundred six million, seven hundred twenty-five thousand, six hundred thirty-nine".