206454254 has 4 divisors (see below), whose sum is σ = 309681384. Its totient is φ = 103227126.

The previous prime is 206454197. The next prime is 206454257. The reversal of 206454254 is 452454602.

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

It is a self number, because there is not a number n which added to its sum of digits gives 206454254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206454257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51613562 + ... + 51613565.

It is an arithmetic number, because the mean of its divisors is an integer number (77420346).

Almost surely, 2^206454254 is an apocalyptic number.

206454254 is a deficient number, since it is larger than the sum of its proper divisors (103227130).

206454254 is a wasteful number, since it uses less digits than its factorization.

206454254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103227129.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 206454254 is about 14368.5160681262. The cubic root of 206454254 is about 591.0278492340.

The spelling of 206454254 in words is "two hundred six million, four hundred fifty-four thousand, two hundred fifty-four".