206725153 has 2 divisors, whose sum is σ = 206725154. Its totient is φ = 206725152.

The previous prime is 206725093. The next prime is 206725159. The reversal of 206725153 is 351527602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118984464 + 87740689 = 10908^2 + 9367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206725153 is a prime.

It is not a weakly prime, because it can be changed into another prime (206725159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103362576 + 103362577.

It is an arithmetic number, because the mean of its divisors is an integer number (103362577).

Almost surely, 2^206725153 is an apocalyptic number.

It is an amenable number.

206725153 is a deficient number, since it is larger than the sum of its proper divisors (1).

206725153 is an equidigital number, since it uses as much as digits as its factorization.

206725153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 206725153 is about 14377.9398037410. The cubic root of 206725153 is about 591.2862420293.

The spelling of 206725153 in words is "two hundred six million, seven hundred twenty-five thousand, one hundred fifty-three".