206163429 has 8 divisors (see below), whose sum is σ = 276420960. Its totient is φ = 136674096.

The previous prime is 206163409. The next prime is 206163431. The reversal of 206163429 is 924361602.

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

It is a de Polignac number, because none of the positive numbers 2^k-206163429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206163429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206163409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191422 + ... + 192495.

It is an arithmetic number, because the mean of its divisors is an integer number (34552620).

Almost surely, 2^206163429 is an apocalyptic number.

It is an amenable number.

206163429 is a deficient number, since it is larger than the sum of its proper divisors (70257531).

206163429 is a wasteful number, since it uses less digits than its factorization.

206163429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384099.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 206163429 is about 14358.3922846536. The cubic root of 206163429 is about 590.7501986262.

The spelling of 206163429 in words is "two hundred six million, one hundred sixty-three thousand, four hundred twenty-nine".