142243253 has 8 divisors (see below), whose sum is σ = 149845920. Its totient is φ = 134652240.

The previous prime is 142243243. The next prime is 142243279. The reversal of 142243253 is 352342241.

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

It is not a de Polignac number, because 142243253 - 2¹⁴ = 142226869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34751 + ... + 38627.

It is an arithmetic number, because the mean of its divisors is an integer number (18730740).

Almost surely, 2^142243253 is an apocalyptic number.

It is an amenable number.

142243253 is a deficient number, since it is larger than the sum of its proper divisors (7602667).

142243253 is a wasteful number, since it uses less digits than its factorization.

142243253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827.

The product of its digits is 5760, while the sum is 26.

The square root of 142243253 is about 11926.5775895686. The cubic root of 142243253 is about 522.0080798601.

Adding to 142243253 its reverse (352342241), we get a palindrome (494585494).

The spelling of 142243253 in words is "one hundred forty-two million, two hundred forty-three thousand, two hundred fifty-three".