142253243 has 4 divisors (see below), whose sum is σ = 155185368. Its totient is φ = 129321120.

The previous prime is 142253233. The next prime is 142253249. The reversal of 142253243 is 342352241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142253243 - 2⁴ = 142253227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142253249) 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, 6466046 + ... + 6466067.

It is an arithmetic number, because the mean of its divisors is an integer number (38796342).

Almost surely, 2^142253243 is an apocalyptic number.

142253243 is a deficient number, since it is larger than the sum of its proper divisors (12932125).

142253243 is a wasteful number, since it uses less digits than its factorization.

142253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12932124.

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

The square root of 142253243 is about 11926.9963947341. The cubic root of 142253243 is about 522.0203000967.

The spelling of 142253243 in words is "one hundred forty-two million, two hundred fifty-three thousand, two hundred forty-three".