100143105 has 16 divisors (see below), whose sum is σ = 160367040. Its totient is φ = 53363648.

The previous prime is 100143103. The next prime is 100143139. The reversal of 100143105 is 501341001.

It is a cyclic number.

It is not a de Polignac number, because 100143105 - 2¹ = 100143103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100143101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22126 + ... + 26264.

It is an arithmetic number, because the mean of its divisors is an integer number (10022940).

Almost surely, 2^100143105 is an apocalyptic number.

100143105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100143105 is a deficient number, since it is larger than the sum of its proper divisors (60223935).

100143105 is a wasteful number, since it uses less digits than its factorization.

100143105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100143105 is about 10007.1526919499. The cubic root of 100143105 is about 464.3801893515.

Adding to 100143105 its reverse (501341001), we get a palindrome (601484106).

The spelling of 100143105 in words is "one hundred million, one hundred forty-three thousand, one hundred five".