206406453 has 8 divisors (see below), whose sum is σ = 300227616. Its totient is φ = 125094800.

The previous prime is 206406449. The next prime is 206406611. The reversal of 206406453 is 354604602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206406453 - 2² = 206406449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206406453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206406653) 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 in 7 ways as a sum of consecutive naturals, for example, 3127338 + ... + 3127403.

It is an arithmetic number, because the mean of its divisors is an integer number (37528452).

Almost surely, 2^206406453 is an apocalyptic number.

It is an amenable number.

206406453 is a deficient number, since it is larger than the sum of its proper divisors (93821163).

206406453 is a wasteful number, since it uses less digits than its factorization.

206406453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254755.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 206406453 is about 14366.8525780701. The cubic root of 206406453 is about 590.9822315368.

The spelling of 206406453 in words is "two hundred six million, four hundred six thousand, four hundred fifty-three".