206142043 has 4 divisors (see below), whose sum is σ = 210936088. Its totient is φ = 201348000.

The previous prime is 206142023. The next prime is 206142061. The reversal of 206142043 is 340241602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340241602 = 2 ⋅170120801.

It is a cyclic number.

It is not a de Polignac number, because 206142043 - 2¹⁷ = 206010971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206142023) 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, 2396958 + ... + 2397043.

It is an arithmetic number, because the mean of its divisors is an integer number (52734022).

Almost surely, 2^206142043 is an apocalyptic number.

206142043 is a deficient number, since it is larger than the sum of its proper divisors (4794045).

206142043 is an equidigital number, since it uses as much as digits as its factorization.

206142043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794044.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206142043 is about 14357.6475440791. The cubic root of 206142043 is about 590.7297711096.

Adding to 206142043 its reverse (340241602), we get a palindrome (546383645).

The spelling of 206142043 in words is "two hundred six million, one hundred forty-two thousand, forty-three".