1205350533 has 12 divisors (see below), whose sum is σ = 1747537740. Its totient is φ = 800578176.

The previous prime is 1205350511. The next prime is 1205350543. The reversal of 1205350533 is 3350535021.

1205350533 is a `hidden beast` number, since 120 + 5 + 3 + 5 + 0 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 395492769 + 809857764 = 19887^2 + 28458^2 .

It is not a de Polignac number, because 1205350533 - 2¹² = 1205346437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1205350497 and 1205350506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205350543) 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 11 ways as a sum of consecutive naturals, for example, 246516 + ... + 251357.

It is an arithmetic number, because the mean of its divisors is an integer number (145628145).

Almost surely, 2^1205350533 is an apocalyptic number.

It is an amenable number.

1205350533 is a deficient number, since it is larger than the sum of its proper divisors (542187207).

1205350533 is a wasteful number, since it uses less digits than its factorization.

1205350533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498148 (or 498145 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 1205350533 is about 34718.1585485175. The cubic root of 1205350533 is about 1064.2356136426.

Adding to 1205350533 its reverse (3350535021), we get a palindrome (4555885554).

The spelling of 1205350533 in words is "one billion, two hundred five million, three hundred fifty thousand, five hundred thirty-three".