142578134 has 4 divisors (see below), whose sum is σ = 213867204. Its totient is φ = 71289066.

The previous prime is 142578103. The next prime is 142578157. The reversal of 142578134 is 431875241.

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

It is a junction number, because it is equal to n+sod(n) for n = 142578094 and 142578103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35644532 + ... + 35644535.

It is an arithmetic number, because the mean of its divisors is an integer number (53466801).

Almost surely, 2^142578134 is an apocalyptic number.

142578134 is a deficient number, since it is larger than the sum of its proper divisors (71289070).

142578134 is an equidigital number, since it uses as much as digits as its factorization.

142578134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71289069.

The product of its digits is 26880, while the sum is 35.

The square root of 142578134 is about 11940.6086109545. The cubic root of 142578134 is about 522.4174105399.

The spelling of 142578134 in words is "one hundred forty-two million, five hundred seventy-eight thousand, one hundred thirty-four".