542221671 has 8 divisors (see below), whose sum is σ = 747892080. Its totient is φ = 349016192.

The previous prime is 542221663. The next prime is 542221697. The reversal of 542221671 is 176122245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542221671 - 2³ = 542221663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542221621) 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 7 ways as a sum of consecutive naturals, for example, 3116130 + ... + 3116303.

It is an arithmetic number, because the mean of its divisors is an integer number (93486510).

Almost surely, 2^542221671 is an apocalyptic number.

542221671 is a deficient number, since it is larger than the sum of its proper divisors (205670409).

542221671 is a wasteful number, since it uses less digits than its factorization.

542221671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232465.

The product of its digits is 6720, while the sum is 30.

The square root of 542221671 is about 23285.6537593429. The cubic root of 542221671 is about 815.4405241367.

The spelling of 542221671 in words is "five hundred forty-two million, two hundred twenty-one thousand, six hundred seventy-one".