142265143 has 4 divisors (see below), whose sum is σ = 148450608. Its totient is φ = 136079680.

The previous prime is 142265131. The next prime is 142265159. The reversal of 142265143 is 341562241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341562241 = 61 ⋅5599381.

It is a cyclic number.

It is not a de Polignac number, because 142265143 - 2¹⁷ = 142134071 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 (142265173) 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, 3092698 + ... + 3092743.

It is an arithmetic number, because the mean of its divisors is an integer number (37112652).

Almost surely, 2^142265143 is an apocalyptic number.

142265143 is a deficient number, since it is larger than the sum of its proper divisors (6185465).

142265143 is an equidigital number, since it uses as much as digits as its factorization.

142265143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185464.

The product of its digits is 5760, while the sum is 28.

The square root of 142265143 is about 11927.4952525667. The cubic root of 142265143 is about 522.0348559883.

The spelling of 142265143 in words is "one hundred forty-two million, two hundred sixty-five thousand, one hundred forty-three".