206040451 has 2 divisors, whose sum is σ = 206040452. Its totient is φ = 206040450.

The previous prime is 206040379. The next prime is 206040467. The reversal of 206040451 is 154040602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206040451 - 2²⁵ = 172486019 is a prime.

It is not a weakly prime, because it can be changed into another prime (206040481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103020225 + 103020226.

It is an arithmetic number, because the mean of its divisors is an integer number (103020226).

Almost surely, 2^206040451 is an apocalyptic number.

206040451 is a deficient number, since it is larger than the sum of its proper divisors (1).

206040451 is an equidigital number, since it uses as much as digits as its factorization.

206040451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 206040451 is about 14354.1092025942. The cubic root of 206040451 is about 590.6327129849.

The spelling of 206040451 in words is "two hundred six million, forty thousand, four hundred fifty-one".