206040501 has 6 divisors (see below), whose sum is σ = 297614070. Its totient is φ = 137360328.

The previous prime is 206040491. The next prime is 206040517. The reversal of 206040501 is 105040602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 150552900 + 55487601 = 12270^2 + 7449^2 .

It is not a de Polignac number, because 206040501 - 2¹⁵ = 206007733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206040581) 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 in 5 ways as a sum of consecutive naturals, for example, 11446686 + ... + 11446703.

It is an arithmetic number, because the mean of its divisors is an integer number (49602345).

Almost surely, 2^206040501 is an apocalyptic number.

It is an amenable number.

206040501 is a deficient number, since it is larger than the sum of its proper divisors (91573569).

206040501 is a wasteful number, since it uses less digits than its factorization.

206040501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22893395 (or 22893392 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 206040501 is about 14354.1109442557. The cubic root of 206040501 is about 590.6327607614.

The spelling of 206040501 in words is "two hundred six million, forty thousand, five hundred one".