542245 has 8 divisors (see below), whose sum is σ = 709920. Its totient is φ = 394320.

The previous prime is 542237. The next prime is 542251.

542245 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 542245 - 2³ = 542237 is a prime.

542245 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4875 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (88740).

2⁵⁴²²⁴⁵ is an apocalyptic number.

542245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

542245 is a deficient number, since it is larger than the sum of its proper divisors (167675).

542245 is a wasteful number, since it uses less digits than its factorization.

542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875.

The product of its digits is 1600, while the sum is 22.

The square root of 542245 is about 736.3728675067. The cubic root of 542245 is about 81.5452218701.

It can be divided in two parts, 542 and 245, that added together give a palindrome (787).

The spelling of 542245 in words is "five hundred forty-two thousand, two hundred forty-five".