542695 has 8 divisors (see below), whose sum is σ = 655200. Its totient is φ = 431520.

The previous prime is 542693. The next prime is 542713. The reversal of 542695 is 596245.

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

It is not a de Polignac number, because 542695 - 2¹ = 542693 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (81900).

2⁵⁴²⁶⁹⁵ is an apocalyptic number.

542695 is a deficient number, since it is larger than the sum of its proper divisors (112505).

542695 is a wasteful number, since it uses less digits than its factorization.

542695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 10800, while the sum is 31.

The square root of 542695 is about 736.6783558650. The cubic root of 542695 is about 81.5677733020.

It can be divided in two parts, 54 and 2695, that multiplied together give a triangular number (145530 = T₅₃₉).

The spelling of 542695 in words is "five hundred forty-two thousand, six hundred ninety-five".