142887383 has 4 divisors (see below), whose sum is σ = 143178888. Its totient is φ = 142595880.

The previous prime is 142887341. The next prime is 142887389. The reversal of 142887383 is 383788241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383788241 = 79 ⋅4858079.

It is a cyclic number.

It is not a de Polignac number, because 142887383 - 2²⁴ = 126110167 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 (142887389) 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, 145016 + ... + 145997.

It is an arithmetic number, because the mean of its divisors is an integer number (35794722).

Almost surely, 2^142887383 is an apocalyptic number.

142887383 is a deficient number, since it is larger than the sum of its proper divisors (291505).

142887383 is an equidigital number, since it uses as much as digits as its factorization.

142887383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291504.

The product of its digits is 258048, while the sum is 44.

The square root of 142887383 is about 11953.5510623413. The cubic root of 142887383 is about 522.7948419481.

The spelling of 142887383 in words is "one hundred forty-two million, eight hundred eighty-seven thousand, three hundred eighty-three".