106143955 has 4 divisors (see below), whose sum is σ = 127372752. Its totient is φ = 84915160.

The previous prime is 106143953. The next prime is 106143967. The reversal of 106143955 is 559341601.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 106143955 - 2¹ = 106143953 is a prime.

It is a super-2 number, since 2×106143955² = 22533078366084050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106143955.

It is not an unprimeable number, because it can be changed into a prime (106143953) 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, 10614391 + ... + 10614400.

It is an arithmetic number, because the mean of its divisors is an integer number (31843188).

Almost surely, 2^106143955 is an apocalyptic number.

106143955 is a deficient number, since it is larger than the sum of its proper divisors (21228797).

106143955 is an equidigital number, since it uses as much as digits as its factorization.

106143955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21228796.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 106143955 is about 10302.6188418285. The cubic root of 106143955 is about 473.4764927129.

The spelling of 106143955 in words is "one hundred six million, one hundred forty-three thousand, nine hundred fifty-five".