1242054552 has 16 divisors (see below), whose sum is σ = 3105136440. Its totient is φ = 414018176.

The previous prime is 1242054497. The next prime is 1242054553. The reversal of 1242054552 is 2554502421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242054553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25876113 + ... + 25876160.

Almost surely, 2^1242054552 is an apocalyptic number.

1242054552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242054552 is an abundant number, since it is smaller than the sum of its proper divisors (1863081888).

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

1242054552 is a wasteful number, since it uses less digits than its factorization.

1242054552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51752282 (or 51752278 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1242054552 is about 35242.7943273515. The cubic root of 1242054552 is about 1074.9300987900.

Adding to 1242054552 its reverse (2554502421), we get a palindrome (3796556973).

The spelling of 1242054552 in words is "one billion, two hundred forty-two million, fifty-four thousand, five hundred fifty-two".