142127644 has 12 divisors (see below), whose sum is σ = 249088168. Its totient is φ = 70959600.

The previous prime is 142127617. The next prime is 142127647. The reversal of 142127644 is 446721241.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142127647) 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, 22947 + ... + 28474.

Almost surely, 2^142127644 is an apocalyptic number.

It is an amenable number.

142127644 is a deficient number, since it is larger than the sum of its proper divisors (106960524).

142127644 is a wasteful number, since it uses less digits than its factorization.

142127644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52116 (or 52114 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 142127644 is about 11921.7299080293. The cubic root of 142127644 is about 521.8666198662.

Adding to 142127644 its reverse (446721241), we get a palindrome (588848885).

The spelling of 142127644 in words is "one hundred forty-two million, one hundred twenty-seven thousand, six hundred forty-four".