1213525352 has 16 divisors (see below), whose sum is σ = 2450387940. Its totient is φ = 560088576.

The previous prime is 1213525351. The next prime is 1213525361. The reversal of 1213525352 is 2535253121.

It can be written as a sum of positive squares in 2 ways, for example, as 950242276 + 263283076 = 30826^2 + 16226^2 .

It is not an unprimeable number, because it can be changed into a prime (1213525351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5834153 + ... + 5834360.

Almost surely, 2^1213525352 is an apocalyptic number.

It is an amenable number.

1213525352 is an abundant number, since it is smaller than the sum of its proper divisors (1236862588).

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

1213525352 is a wasteful number, since it uses less digits than its factorization.

1213525352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11668532 (or 11668528 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 1213525352 is about 34835.6907782808. The cubic root of 1213525352 is about 1066.6361157048.

Adding to 1213525352 its reverse (2535253121), we get a palindrome (3748778473).

The spelling of 1213525352 in words is "one billion, two hundred thirteen million, five hundred twenty-five thousand, three hundred fifty-two".