206049901 has 8 divisors (see below), whose sum is σ = 220032000. Its totient is φ = 192526320.

The previous prime is 206049871. The next prime is 206049917. The reversal of 206049901 is 109940602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 206049901 - 2⁵ = 206049869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206049931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113701 + ... + 115498.

It is an arithmetic number, because the mean of its divisors is an integer number (27504000).

Almost surely, 2^206049901 is an apocalyptic number.

206049901 is the 6420-th centered decagonal number.

It is an amenable number.

206049901 is a deficient number, since it is larger than the sum of its proper divisors (13982099).

206049901 is a wasteful number, since it uses less digits than its factorization.

206049901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229259.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 206049901 is about 14354.4383728518. The cubic root of 206049901 is about 590.6417425934.

The spelling of 206049901 in words is "two hundred six million, forty-nine thousand, nine hundred one".