254542 has 4 divisors (see below), whose sum is σ = 381816.
Its totient is φ = 127270.
The previous prime is 254537. The next prime is 254557. The reversal of 254542 is 245452.
Adding to 254542 its reverse (245452), we get a palindrome (499994).
It is a semiprime because it is the product of two primes.
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 pancake number, because a pancake can be divided into 254542 parts by 713 straight cuts.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63634 + ... + 63637.
It is an arithmetic number, because the mean of its divisors is an integer number (95454).
2254542 is an apocalyptic number.
254542 is a deficient number, since it is larger than the sum of its proper divisors (127274).
254542 is a wasteful number, since it uses less digits than its factorization.
254542 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127273.
The product of its digits is 1600, while the sum is 22.
The square root of 254542 is about 504.5215555355.
The cubic root of 254542 is about 63.3752692406.
The spelling of 254542 in words is "two hundred fifty-four thousand, five hundred forty-two".