1239552 has 60 divisors (see below), whose sum is σ = 3590730. Its totient is φ = 411648.

The previous prime is 1239551. The next prime is 1239569. The reversal of 1239552 is 2559321.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 20736 = 1104^2 + 144^2 .

It is not an unprimeable number, because it can be changed into a prime (1239551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4474 + ... + 4742.

2^1239552 is an apocalyptic number.

1239552 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 1239552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795365).

1239552 is an abundant number, since it is smaller than the sum of its proper divisors (2351178).

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

1239552 is an equidigital number, since it uses as much as digits as its factorization.

1239552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 274 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1239552 is about 1113.3516964553. The cubic root of 1239552 is about 107.4207672875.

Subtracting from 1239552 its sum of digits (27), we obtain a triangular number (1239525 = T₁₅₇₄).

The spelling of 1239552 in words is "one million, two hundred thirty-nine thousand, five hundred fifty-two".