142311382 has 4 divisors (see below), whose sum is σ = 213467076. Its totient is φ = 71155690.

The previous prime is 142311343. The next prime is 142311401. The reversal of 142311382 is 283113241.

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: 283113241 = 41 ⋅6905201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35577844 + ... + 35577847.

It is an arithmetic number, because the mean of its divisors is an integer number (53366769).

Almost surely, 2^142311382 is an apocalyptic number.

142311382 is a deficient number, since it is larger than the sum of its proper divisors (71155694).

142311382 is an equidigital number, since it uses as much as digits as its factorization.

142311382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71155693.

The product of its digits is 1152, while the sum is 25.

The square root of 142311382 is about 11929.4334316429. The cubic root of 142311382 is about 522.0914070978.

It can be divided in two parts, 1423 and 11382, that multiplied together give a triangular number (16196586 = T₅₆₉₁).

The spelling of 142311382 in words is "one hundred forty-two million, three hundred eleven thousand, three hundred eighty-two".