542215 has 8 divisors (see below), whose sum is σ = 689040. Its totient is φ = 408192.

The previous prime is 542207. The next prime is 542219. The reversal of 542215 is 512245.

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 542215 - 2³ = 542207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542192 and 542201.

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, 3105 + ... + 3274.

It is an arithmetic number, because the mean of its divisors is an integer number (86130).

2⁵⁴²²¹⁵ is an apocalyptic number.

542215 is a deficient number, since it is larger than the sum of its proper divisors (146825).

542215 is a wasteful number, since it uses less digits than its factorization.

542215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401.

The product of its digits is 400, while the sum is 19.

The square root of 542215 is about 736.3524971099. The cubic root of 542215 is about 81.5437179978.

It can be divided in two parts, 542 and 215, that added together give a palindrome (757).

The spelling of 542215 in words is "five hundred forty-two thousand, two hundred fifteen".