542635 has 8 divisors (see below), whose sum is σ = 667296. Its totient is φ = 423360.

The previous prime is 542603. The next prime is 542683. The reversal of 542635 is 536245.

542635 is nontrivially palindromic in base 15.

542635 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 not a de Polignac number, because 542635 - 2⁵ = 542603 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁴ + 6⁵ + 2⁵ + 3¹² + 5⁵ .

It is a Duffinian number.

542635 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (83412).

2⁵⁴²⁶³⁵ is an apocalyptic number.

542635 is a deficient number, since it is larger than the sum of its proper divisors (124661).

542635 is a wasteful number, since it uses less digits than its factorization.

542635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its digits is 3600, while the sum is 25.

The square root of 542635 is about 736.6376314037. The cubic root of 542635 is about 81.5647671649.

The spelling of 542635 in words is "five hundred forty-two thousand, six hundred thirty-five".