542902 has 4 divisors (see below), whose sum is σ = 814356. Its totient is φ = 271450.

The previous prime is 542891. The next prime is 542911. The reversal of 542902 is 209245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209245 = 5 ⋅41849.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5⁵ + 4² + 9⁶ + 2⁷ + 0 + 2¹³ .

It is a congruent number.

It is an unprimeable number.

542902 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135724 + ... + 135727.

It is an arithmetic number, because the mean of its divisors is an integer number (203589).

2⁵⁴²⁹⁰² is an apocalyptic number.

542902 is a deficient number, since it is larger than the sum of its proper divisors (271454).

542902 is a wasteful number, since it uses less digits than its factorization.

542902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271453.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 542902 is about 736.8188379785. The cubic root of 542902 is about 81.5781427746.

It can be divided in two parts, 542 and 902, that multiplied together give a palindrome (488884).

The spelling of 542902 in words is "five hundred forty-two thousand, nine hundred two".