1205020535 has 8 divisors (see below), whose sum is σ = 1469730336. Its totient is φ = 948212640.

The previous prime is 1205020529. The next prime is 1205020541. The reversal of 1205020535 is 5350205021.

It is an interprime number because it is at equal distance from previous prime (1205020529) and next prime (1205020541).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205020535 - 2⁸ = 1205020279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1205020535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975139 + ... + 1975748.

It is an arithmetic number, because the mean of its divisors is an integer number (183716292).

Almost surely, 2^1205020535 is an apocalyptic number.

1205020535 is a deficient number, since it is larger than the sum of its proper divisors (264709801).

1205020535 is an equidigital number, since it uses as much as digits as its factorization.

1205020535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950953.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1205020535 is about 34713.4056957827. The cubic root of 1205020535 is about 1064.1384834803.

Adding to 1205020535 its reverse (5350205021), we get a palindrome (6555225556).

The spelling of 1205020535 in words is "one billion, two hundred five million, twenty thousand, five hundred thirty-five".