106657215 has 32 divisors (see below), whose sum is σ = 201761280. Its totient is φ = 47074944.

The previous prime is 106657211. The next prime is 106657217. The reversal of 106657215 is 512756601.

It is not a de Polignac number, because 106657215 - 2² = 106657211 is a prime.

It is a super-2 number, since 2×106657215² = 22751523023112450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106657211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14469 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (6305040).

Almost surely, 2^106657215 is an apocalyptic number.

106657215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106657215 is a deficient number, since it is larger than the sum of its proper divisors (95104065).

106657215 is a wasteful number, since it uses less digits than its factorization.

106657215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35071.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 106657215 is about 10327.4980029047. The cubic root of 106657215 is about 474.2384324475.

The spelling of 106657215 in words is "one hundred six million, six hundred fifty-seven thousand, two hundred fifteen".