542249 has 8 divisors (see below), whose sum is σ = 580608. Its totient is φ = 504640.

The previous prime is 542237. The next prime is 542251. The reversal of 542249 is 942245.

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 542249 - 2⁸ = 541993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542219) by changing a digit.

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, 2744 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁵⁴²²⁴⁹ is an apocalyptic number.

It is an amenable number.

542249 is a deficient number, since it is larger than the sum of its proper divisors (38359).

542249 is a wasteful number, since it uses less digits than its factorization.

542249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its digits is 2880, while the sum is 26.

The square root of 542249 is about 736.3755835170. The cubic root of 542249 is about 81.5454223823.

The spelling of 542249 in words is "five hundred forty-two thousand, two hundred forty-nine".