142530253 has 16 divisors (see below), whose sum is σ = 150480000. Its totient is φ = 134851392.

The previous prime is 142530247. The next prime is 142530257. The reversal of 142530253 is 352035241.

It is a cyclic number.

It is not a de Polignac number, because 142530253 - 2⁹ = 142529741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142530257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237648 + ... + 238246.

It is an arithmetic number, because the mean of its divisors is an integer number (9405000).

Almost surely, 2^142530253 is an apocalyptic number.

It is an amenable number.

142530253 is a deficient number, since it is larger than the sum of its proper divisors (7949747).

142530253 is a wasteful number, since it uses less digits than its factorization.

142530253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 142530253 is about 11938.6034777942. The cubic root of 142530253 is about 522.3589240854.

Adding to 142530253 its reverse (352035241), we get a palindrome (494565494).

The spelling of 142530253 in words is "one hundred forty-two million, five hundred thirty thousand, two hundred fifty-three".