106688242 has 16 divisors (see below), whose sum is σ = 164631960. Its totient is φ = 51815808.

The previous prime is 106688213. The next prime is 106688269. The reversal of 106688242 is 242886601.

It is a Cunningham number, because it is equal to 10329²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 95472441 + 11215801 = 9771^2 + 3349^2 .

It is a super-2 number, since 2×106688242² = 22764761962101128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82908 + ... + 84184.

Almost surely, 2^106688242 is an apocalyptic number.

106688242 is a deficient number, since it is larger than the sum of its proper divisors (57943718).

106688242 is a wasteful number, since it uses less digits than its factorization.

106688242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 106688242 is about 10329.0000484074. Note that the first 4 decimals coincide. The cubic root of 106688242 is about 474.2844139258.

The spelling of 106688242 in words is "one hundred six million, six hundred eighty-eight thousand, two hundred forty-two".