206952194 has 4 divisors (see below), whose sum is σ = 310428294. Its totient is φ = 103476096.

The previous prime is 206952173. The next prime is 206952197. The reversal of 206952194 is 491259602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491259602 = 2 ⋅245629801.

It can be written as a sum of positive squares in only one way, i.e., 148230625 + 58721569 = 12175^2 + 7663^2 .

It is not an unprimeable number, because it can be changed into a prime (206952197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51738047 + ... + 51738050.

Almost surely, 2^206952194 is an apocalyptic number.

206952194 is a deficient number, since it is larger than the sum of its proper divisors (103476100).

206952194 is a wasteful number, since it uses less digits than its factorization.

206952194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103476099.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 206952194 is about 14385.8331006584. The cubic root of 206952194 is about 591.5026277332.

The spelling of 206952194 in words is "two hundred six million, nine hundred fifty-two thousand, one hundred ninety-four".