542637 has 6 divisors (see below), whose sum is σ = 783822. Its totient is φ = 361752.

The previous prime is 542603. The next prime is 542683. The reversal of 542637 is 736245.

It is a happy number.

542637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 427716 + 114921 = 654^2 + 339^2 .

It is not a de Polignac number, because 542637 - 2¹⁰ = 541613 is a prime.

It is a d-powerful number, because it can be written as 5⁵ + 4⁴ + 6⁵ + 2⁵ + 3¹² + 7 .

It is a self number, because there is not a number n which added to its sum of digits gives 542637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30138 + ... + 30155.

It is an arithmetic number, because the mean of its divisors is an integer number (130637).

2⁵⁴²⁶³⁷ is an apocalyptic number.

It is an amenable number.

542637 is a deficient number, since it is larger than the sum of its proper divisors (241185).

542637 is a wasteful number, since it uses less digits than its factorization.

542637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60299 (or 60296 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 542637 is about 736.6389889220. The cubic root of 542637 is about 81.5648673730.

The spelling of 542637 in words is "five hundred forty-two thousand, six hundred thirty-seven".