142443134 has 4 divisors (see below), whose sum is σ = 213664704. Its totient is φ = 71221566.

The previous prime is 142443131. The next prime is 142443137. The reversal of 142443134 is 431344241.

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

It is an interprime number because it is at equal distance from previous prime (142443131) and next prime (142443137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142443131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35610782 + ... + 35610785.

It is an arithmetic number, because the mean of its divisors is an integer number (53416176).

Almost surely, 2^142443134 is an apocalyptic number.

142443134 is a deficient number, since it is larger than the sum of its proper divisors (71221570).

142443134 is an equidigital number, since it uses as much as digits as its factorization.

142443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71221569.

The product of its digits is 4608, while the sum is 26.

The square root of 142443134 is about 11934.9542940055. The cubic root of 142443134 is about 522.2524749605.

Adding to 142443134 its reverse (431344241), we get a palindrome (573787375).

The spelling of 142443134 in words is "one hundred forty-two million, four hundred forty-three thousand, one hundred thirty-four".