1212552 has 48 divisors (see below), whose sum is σ = 3584880. Its totient is φ = 367200.

The previous prime is 1212551. The next prime is 1212569. The reversal of 1212552 is 2552121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27 + ... + 1557.

It is an arithmetic number, because the mean of its divisors is an integer number (74685).

2^1212552 is an apocalyptic number.

1212552 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 1212552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792440).

1212552 is an abundant number, since it is smaller than the sum of its proper divisors (2372328).

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

1212552 is a wasteful number, since it uses less digits than its factorization.

1212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 1547 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 1212552 is about 1101.1593890078. The cubic root of 1212552 is about 106.6350861371.

Adding to 1212552 its reverse (2552121), we get a palindrome (3764673).

It can be divided in two parts, 1212 and 552, that added together give a square (1764 = 42²).

The spelling of 1212552 in words is "one million, two hundred twelve thousand, five hundred fifty-two".