142903253 has 4 divisors (see below), whose sum is σ = 142990848. Its totient is φ = 142815660.

The previous prime is 142903219. The next prime is 142903279. The reversal of 142903253 is 352309241.

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.

It is a cyclic number.

It is not a de Polignac number, because 142903253 - 2¹⁰ = 142902229 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 (142903153) 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, 41303 + ... + 44628.

It is an arithmetic number, because the mean of its divisors is an integer number (35747712).

Almost surely, 2^142903253 is an apocalyptic number.

It is an amenable number.

142903253 is a deficient number, since it is larger than the sum of its proper divisors (87595).

142903253 is an equidigital number, since it uses as much as digits as its factorization.

142903253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87594.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 142903253 is about 11954.2148633861. The cubic root of 142903253 is about 522.8141962275.

The spelling of 142903253 in words is "one hundred forty-two million, nine hundred three thousand, two hundred fifty-three".