142134145 has 4 divisors (see below), whose sum is σ = 170560980. Its totient is φ = 113707312.

The previous prime is 142134103. The next prime is 142134211. The reversal of 142134145 is 541431241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29604481 + 112529664 = 5441^2 + 10608^2 .

It is a cyclic number.

It is not a de Polignac number, because 142134145 - 2¹³ = 142125953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14213410 + ... + 14213419.

It is an arithmetic number, because the mean of its divisors is an integer number (42640245).

Almost surely, 2^142134145 is an apocalyptic number.

It is an amenable number.

142134145 is a deficient number, since it is larger than the sum of its proper divisors (28426835).

142134145 is an equidigital number, since it uses as much as digits as its factorization.

142134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28426834.

The product of its digits is 1920, while the sum is 25.

The square root of 142134145 is about 11922.0025582953. The cubic root of 142134145 is about 521.8745765711.

Adding to 142134145 its reverse (541431241), we get a palindrome (683565386).

The spelling of 142134145 in words is "one hundred forty-two million, one hundred thirty-four thousand, one hundred forty-five".