542521144 has 64 divisors (see below), whose sum is σ = 1137356640. Its totient is φ = 240514560.

The previous prime is 542521103. The next prime is 542521169. The reversal of 542521144 is 441125245.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1366354 + ... + 1366750.

Almost surely, 2^542521144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542521144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568678320).

542521144 is an abundant number, since it is smaller than the sum of its proper divisors (594835496).

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

542521144 is a wasteful number, since it uses less digits than its factorization.

542521144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 756 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 542521144 is about 23292.0832902512. The cubic root of 542521144 is about 815.5906210981.

Adding to 542521144 its reverse (441125245), we get a palindrome (983646389).

It can be divided in two parts, 5425 and 21144, that added together give a square (26569 = 163²).

The spelling of 542521144 in words is "five hundred forty-two million, five hundred twenty-one thousand, one hundred forty-four".