1205320052 has 24 divisors (see below), whose sum is σ = 2191805952. Its totient is φ = 579348000.

The previous prime is 1205319943. The next prime is 1205320079. The reversal of 1205320052 is 2500235021.

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, 13463 + ... + 50910.

It is an arithmetic number, because the mean of its divisors is an integer number (91325248).

Almost surely, 2^1205320052 is an apocalyptic number.

It is an amenable number.

1205320052 is a deficient number, since it is larger than the sum of its proper divisors (986485900).

1205320052 is a wasteful number, since it uses less digits than its factorization.

1205320052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64559 (or 64557 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1205320052 is about 34717.7195679670. The cubic root of 1205320052 is about 1064.2266427420.

Adding to 1205320052 its reverse (2500235021), we get a palindrome (3705555073).

The spelling of 1205320052 in words is "one billion, two hundred five million, three hundred twenty thousand, fifty-two".