542021231 has 8 divisors (see below), whose sum is σ = 545779584. Its totient is φ = 538274520.

The previous prime is 542021213. The next prime is 542021237. The reversal of 542021231 is 132120245.

542021231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 542021231 - 2⁶ = 542021167 is a prime.

It is a super-2 number, since 2×542021231² = 587574029709510722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542021237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103580 + ... + 108686.

It is an arithmetic number, because the mean of its divisors is an integer number (68222448).

Almost surely, 2^542021231 is an apocalyptic number.

542021231 is a deficient number, since it is larger than the sum of its proper divisors (3758353).

542021231 is a wasteful number, since it uses less digits than its factorization.

542021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 542021231 is about 23281.3494239488. The cubic root of 542021231 is about 815.3400319999.

Adding to 542021231 its reverse (132120245), we get a palindrome (674141476).

The spelling of 542021231 in words is "five hundred forty-two million, twenty-one thousand, two hundred thirty-one".