1242511552 has 28 divisors (see below), whose sum is σ = 2518074720. Its totient is φ = 608036096.

The previous prime is 1242511537. The next prime is 1242511553. The reversal of 1242511552 is 2551152421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242511552.

It is not an unprimeable number, because it can be changed into a prime (1242511553) 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, 203527 + ... + 209542.

It is an arithmetic number, because the mean of its divisors is an integer number (89931240).

Almost surely, 2^1242511552 is an apocalyptic number.

It is an amenable number.

1242511552 is an abundant number, since it is smaller than the sum of its proper divisors (1275563168).

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

1242511552 is an equidigital number, since it uses as much as digits as its factorization.

1242511552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413128 (or 413118 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 1242511552 is about 35249.2773259254. The cubic root of 1242511552 is about 1075.0619187699.

Adding to 1242511552 its reverse (2551152421), we get a palindrome (3793663973).

The spelling of 1242511552 in words is "one billion, two hundred forty-two million, five hundred eleven thousand, five hundred fifty-two".