142753438 has 4 divisors (see below), whose sum is σ = 214130160. Its totient is φ = 71376718.

The previous prime is 142753427. The next prime is 142753447. The reversal of 142753438 is 834357241.

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: 834357241 = 19 ⋅43913539.

It is a junction number, because it is equal to n+sod(n) for n = 142753397 and 142753406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35688358 + ... + 35688361.

It is an arithmetic number, because the mean of its divisors is an integer number (53532540).

Almost surely, 2^142753438 is an apocalyptic number.

142753438 is a deficient number, since it is larger than the sum of its proper divisors (71376722).

142753438 is an equidigital number, since it uses as much as digits as its factorization.

142753438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71376721.

The product of its digits is 80640, while the sum is 37.

The square root of 142753438 is about 11947.9470203044. The cubic root of 142753438 is about 522.6314320278.

The spelling of 142753438 in words is "one hundred forty-two million, seven hundred fifty-three thousand, four hundred thirty-eight".