1212546552 has 96 divisors (see below), whose sum is σ = 3540315600. Its totient is φ = 345063936.

The previous prime is 1212546497. The next prime is 1212546563. The reversal of 1212546552 is 2556452121.

It is a congruent number.

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, 314428 + ... + 318260.

Almost surely, 2^1212546552 is an apocalyptic number.

1212546552 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 1212546552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770157800).

1212546552 is an abundant number, since it is smaller than the sum of its proper divisors (2327769048).

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

1212546552 is a wasteful number, since it uses less digits than its factorization.

1212546552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125 (or 4114 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 1212546552 is about 34821.6391343084. The cubic root of 1212546552 is about 1066.3492643290.

Adding to 1212546552 its reverse (2556452121), we get a palindrome (3768998673).

The spelling of 1212546552 in words is "one billion, two hundred twelve million, five hundred forty-six thousand, five hundred fifty-two".