253042 has 8 divisors (see below), whose sum is σ = 399600. Its totient is φ = 119844.

The previous prime is 253013. The next prime is 253049. The reversal of 253042 is 240352.

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

It is not an unprimeable number, because it can be changed into a prime (253049) by changing a digit.

253042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 3292 + ... + 3367.

It is an arithmetic number, because the mean of its divisors is an integer number (49950).

2²⁵³⁰⁴² is an apocalyptic number.

253042 is a deficient number, since it is larger than the sum of its proper divisors (146558).

253042 is a wasteful number, since it uses less digits than its factorization.

253042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 253042 is about 503.0328021114. The cubic root of 253042 is about 63.2505350765.

Adding to 253042 its reverse (240352), we get a palindrome (493394).

The spelling of 253042 in words is "two hundred fifty-three thousand, forty-two".