206442151 has 4 divisors (see below), whose sum is σ = 206640000. Its totient is φ = 206244304.

The previous prime is 206442133. The next prime is 206442157. The reversal of 206442151 is 151244602.

It is a happy number.

206442151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 206442151 - 2¹³ = 206433959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206442157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97351 + ... + 99448.

It is an arithmetic number, because the mean of its divisors is an integer number (51660000).

Almost surely, 2^206442151 is an apocalyptic number.

206442151 is a deficient number, since it is larger than the sum of its proper divisors (197849).

206442151 is a wasteful number, since it uses less digits than its factorization.

206442151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197848.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 206442151 is about 14368.0948980719. The cubic root of 206442151 is about 591.0162997023.

Adding to 206442151 its reverse (151244602), we get a palindrome (357686753).

The spelling of 206442151 in words is "two hundred six million, four hundred forty-two thousand, one hundred fifty-one".