205207242248 has 12 divisors (see below), whose sum is σ = 384765981615. Its totient is φ = 102602980488.

The previous prime is 205207242223. The next prime is 205207242257. The reversal of 205207242248 is 842242702502.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 102603621124 + 102603621124 = 320318^2 + 320318^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=320318.

It is a super-2 number, since 2×205207242248² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 1201193 + ... + 1361351.

Almost surely, 2^205207242248 is an apocalyptic number.

It is an amenable number.

205207242248 is a deficient number, since it is larger than the sum of its proper divisors (179558739367).

205207242248 is an frugal number, since it uses more digits than its factorization.

205207242248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320324 (or 160161 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 38.

The spelling of 205207242248 in words is "two hundred five billion, two hundred seven million, two hundred forty-two thousand, two hundred forty-eight".