106720615 has 8 divisors (see below), whose sum is σ = 129976560. Its totient is φ = 84101952.

The previous prime is 106720571. The next prime is 106720619. The reversal of 106720615 is 516027601.

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 106720615 - 2¹¹ = 106718567 is a prime.

It is a super-2 number, since 2×106720615² = 22778579331956450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106720619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158950 + ... + 159619.

It is an arithmetic number, because the mean of its divisors is an integer number (16247070).

Almost surely, 2^106720615 is an apocalyptic number.

106720615 is a deficient number, since it is larger than the sum of its proper divisors (23255945).

106720615 is an equidigital number, since it uses as much as digits as its factorization.

106720615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318641.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 106720615 is about 10330.5670221920. The cubic root of 106720615 is about 474.3323806506.

The spelling of 106720615 in words is "one hundred six million, seven hundred twenty thousand, six hundred fifteen".