100229943 has 32 divisors (see below), whose sum is σ = 157324032. Its totient is φ = 56076800.

The previous prime is 100229939. The next prime is 100229971. The reversal of 100229943 is 349922001.

It is a cyclic number.

It is not a de Polignac number, because 100229943 - 2² = 100229939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100229943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100229903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28048 + ... + 31418.

It is an arithmetic number, because the mean of its divisors is an integer number (4916376).

Almost surely, 2^100229943 is an apocalyptic number.

100229943 is a deficient number, since it is larger than the sum of its proper divisors (57094089).

100229943 is a wasteful number, since it uses less digits than its factorization.

100229943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 100229943 is about 10011.4905483649. The cubic root of 100229943 is about 464.5143779757.

The spelling of 100229943 in words is "one hundred million, two hundred twenty-nine thousand, nine hundred forty-three".