1203215652 has 72 divisors (see below), whose sum is σ = 3197166336. Its totient is φ = 380797824.

The previous prime is 1203215609. The next prime is 1203215683. The reversal of 1203215652 is 2565123021.

It is a happy number.

1203215652 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 2 + 1 + 5 + 652 = 666.

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 23 ways as a sum of consecutive naturals, for example, 108133 + ... + 118739.

It is an arithmetic number, because the mean of its divisors is an integer number (44405088).

Almost surely, 2^1203215652 is an apocalyptic number.

1203215652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203215652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598583168).

1203215652 is an abundant number, since it is smaller than the sum of its proper divisors (1993950684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1203215652 is a wasteful number, since it uses less digits than its factorization.

1203215652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777 (or 10772 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1203215652 is about 34687.3990376909. The cubic root of 1203215652 is about 1063.6069281755.

Adding to 1203215652 its reverse (2565123021), we get a palindrome (3768338673).

The spelling of 1203215652 in words is "one billion, two hundred three million, two hundred fifteen thousand, six hundred fifty-two".