106643742 has 8 divisors (see below), whose sum is σ = 213287496. Its totient is φ = 35547912.

The previous prime is 106643723. The next prime is 106643743. The reversal of 106643742 is 247346601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

106643742 is an admirable number.

It is a super-2 number, since 2×106643742² = 22745775415525128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106643743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8886973 + ... + 8886984.

It is an arithmetic number, because the mean of its divisors is an integer number (26660937).

Almost surely, 2^106643742 is an apocalyptic number.

106643742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106643742 is a wasteful number, since it uses less digits than its factorization.

106643742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17773962.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 106643742 is about 10326.8456945962. The cubic root of 106643742 is about 474.2184629172.

The spelling of 106643742 in words is "one hundred six million, six hundred forty-three thousand, seven hundred forty-two".