206042151 has 16 divisors (see below), whose sum is σ = 324098048. Its totient is φ = 113940000.

The previous prime is 206042149. The next prime is 206042183. The reversal of 206042151 is 151240602.

It is not a de Polignac number, because 206042151 - 2¹ = 206042149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206042141) 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, 157600 + ... + 158901.

It is an arithmetic number, because the mean of its divisors is an integer number (20256128).

Almost surely, 2^206042151 is an apocalyptic number.

206042151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206042151 is a deficient number, since it is larger than the sum of its proper divisors (118055897).

206042151 is a wasteful number, since it uses less digits than its factorization.

206042151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316542.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 206042151 is about 14354.1684189646. The cubic root of 206042151 is about 590.6343373793.

Adding to 206042151 its reverse (151240602), we get a palindrome (357282753).

The spelling of 206042151 in words is "two hundred six million, forty-two thousand, one hundred fifty-one".