142253 has 4 divisors (see below), whose sum is σ = 149760. Its totient is φ = 134748.

The previous prime is 142237. The next prime is 142271. The reversal of 142253 is 352241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352241 = 19 ⋅18539.

It is not a de Polignac number, because 142253 - 2⁴ = 142237 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 (142223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3725 + ... + 3762.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2¹⁴²²⁵³ is an apocalyptic number.

It is an amenable number.

142253 is a deficient number, since it is larger than the sum of its proper divisors (7507).

142253 is an equidigital number, since it uses as much as digits as its factorization.

142253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506.

The product of its digits is 240, while the sum is 17.

The square root of 142253 is about 377.1644203792. The cubic root of 142253 is about 52.2020002854.

Adding to 142253 its reverse (352241), we get a palindrome (494494).

The spelling of 142253 in words is "one hundred forty-two thousand, two hundred fifty-three".