206189002 has 4 divisors (see below), whose sum is σ = 309283506. Its totient is φ = 103094500.

The previous prime is 206188993. The next prime is 206189017. The reversal of 206189002 is 200981602.

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: 200981602 = 2 ⋅100490801.

It can be written as a sum of positive squares in only one way, i.e., 177982281 + 28206721 = 13341^2 + 5311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51547249 + ... + 51547252.

Almost surely, 2^206189002 is an apocalyptic number.

206189002 is a deficient number, since it is larger than the sum of its proper divisors (103094504).

206189002 is a wasteful number, since it uses less digits than its factorization.

206189002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103094503.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 206189002 is about 14359.2827815320. The cubic root of 206189002 is about 590.7746236343.

The spelling of 206189002 in words is "two hundred six million, one hundred eighty-nine thousand, two".