542194 has 4 divisors (see below), whose sum is σ = 813294. Its totient is φ = 271096.

The previous prime is 542189. The next prime is 542197. The reversal of 542194 is 491245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 471969 + 70225 = 687^2 + 265^2 .

It is not an unprimeable number, because it can be changed into a prime (542197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135547 + ... + 135550.

2⁵⁴²¹⁹⁴ is an apocalyptic number.

542194 is a deficient number, since it is larger than the sum of its proper divisors (271100).

542194 is a wasteful number, since it uses less digits than its factorization.

542194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271099.

The product of its digits is 1440, while the sum is 25.

The square root of 542194 is about 736.3382374969. The cubic root of 542194 is about 81.5426652542.

The spelling of 542194 in words is "five hundred forty-two thousand, one hundred ninety-four".