142005134434 has 8 divisors (see below), whose sum is σ = 225537566508. Its totient is φ = 66825945600.

The previous prime is 142005134431. The next prime is 142005134437. The reversal of 142005134434 is 434431500241.

It is an interprime number because it is at equal distance from previous prime (142005134431) and next prime (142005134437).

It can be written as a sum of positive squares in 2 ways, for example, as 141415858809 + 589275625 = 376053^2 + 24275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142005134396 and 142005134405.

It is not an unprimeable number, because it can be changed into a prime (142005134431) 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, 2088310767 + ... + 2088310834.

Almost surely, 2^142005134434 is an apocalyptic number.

142005134434 is a deficient number, since it is larger than the sum of its proper divisors (83532432074).

142005134434 is a wasteful number, since it uses less digits than its factorization.

142005134434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176621620.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 142005134434 its reverse (434431500241), we get a palindrome (576436634675).

The spelling of 142005134434 in words is "one hundred forty-two billion, five million, one hundred thirty-four thousand, four hundred thirty-four".