542221454 has 4 divisors (see below), whose sum is σ = 813332184. Its totient is φ = 271110726.

The previous prime is 542221447. The next prime is 542221483. The reversal of 542221454 is 454122245.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135555362 + ... + 135555365.

It is an arithmetic number, because the mean of its divisors is an integer number (203333046).

Almost surely, 2^542221454 is an apocalyptic number.

542221454 is a deficient number, since it is larger than the sum of its proper divisors (271110730).

542221454 is a wasteful number, since it uses less digits than its factorization.

542221454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271110729.

The product of its digits is 12800, while the sum is 29.

The square root of 542221454 is about 23285.6490998211. The cubic root of 542221454 is about 815.4404153555.

Adding to 542221454 its reverse (454122245), we get a palindrome (996343699).

The spelling of 542221454 in words is "five hundred forty-two million, two hundred twenty-one thousand, four hundred fifty-four".