1225530532 has 6 divisors (see below), whose sum is σ = 2144678438. Its totient is φ = 612765264.

The previous prime is 1225530521. The next prime is 1225530557. The reversal of 1225530532 is 2350355221.

It can be written as a sum of positive squares in only one way, i.e., 645973056 + 579557476 = 25416^2 + 24074^2 .

It is a super-3 number, since 3×1225530532³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1225530532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153191313 + ... + 153191320.

Almost surely, 2^1225530532 is an apocalyptic number.

It is an amenable number.

1225530532 is a deficient number, since it is larger than the sum of its proper divisors (919147906).

1225530532 is a wasteful number, since it uses less digits than its factorization.

1225530532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306382637 (or 306382635 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1225530532 is about 35007.5782081537. The cubic root of 1225530532 is about 1070.1419242844.

Adding to 1225530532 its reverse (2350355221), we get a palindrome (3575885753).

The spelling of 1225530532 in words is "one billion, two hundred twenty-five million, five hundred thirty thousand, five hundred thirty-two".