142644134 has 8 divisors (see below), whose sum is σ = 225227640. Its totient is φ = 67568256.

The previous prime is 142644133. The next prime is 142644143. The reversal of 142644134 is 431446241.

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 = 142644097 and 142644106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142644133) 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, 1876859 + ... + 1876934.

It is an arithmetic number, because the mean of its divisors is an integer number (28153455).

Almost surely, 2^142644134 is an apocalyptic number.

142644134 is a deficient number, since it is larger than the sum of its proper divisors (82583506).

142644134 is a wasteful number, since it uses less digits than its factorization.

142644134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753814.

The product of its digits is 9216, while the sum is 29.

The square root of 142644134 is about 11943.3719694230. The cubic root of 142644134 is about 522.4980078219.

The spelling of 142644134 in words is "one hundred forty-two million, six hundred forty-four thousand, one hundred thirty-four".