206206142 has 4 divisors (see below), whose sum is σ = 309309216. Its totient is φ = 103103070.

The previous prime is 206206127. The next prime is 206206157. The reversal of 206206142 is 241602602.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (206206127) and next prime (206206157).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51551534 + ... + 51551537.

It is an arithmetic number, because the mean of its divisors is an integer number (77327304).

Almost surely, 2^206206142 is an apocalyptic number.

206206142 is a deficient number, since it is larger than the sum of its proper divisors (103103074).

206206142 is a wasteful number, since it uses less digits than its factorization.

206206142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103103073.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 206206142 is about 14359.8795955955. The cubic root of 206206142 is about 590.7909930759.

Adding to 206206142 its reverse (241602602), we get a palindrome (447808744).

It can be divided in two parts, 20620 and 6142, that added together give a palindrome (26762).

The spelling of 206206142 in words is "two hundred six million, two hundred six thousand, one hundred forty-two".