142144276 has 12 divisors (see below), whose sum is σ = 263385108. Its totient is φ = 66891392.

The previous prime is 142144273. The next prime is 142144291. The reversal of 142144276 is 672441241.

It can be written as a sum of positive squares in 2 ways, for example, as 56100100 + 86044176 = 7490^2 + 9276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142144273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045111 + ... + 1045246.

It is an arithmetic number, because the mean of its divisors is an integer number (21948759).

Almost surely, 2^142144276 is an apocalyptic number.

It is an amenable number.

142144276 is a deficient number, since it is larger than the sum of its proper divisors (121240832).

142144276 is a wasteful number, since it uses less digits than its factorization.

142144276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090378 (or 2090376 counting only the distinct ones).

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

The square root of 142144276 is about 11922.4274373971. The cubic root of 142144276 is about 521.8869756225.

The spelling of 142144276 in words is "one hundred forty-two million, one hundred forty-four thousand, two hundred seventy-six".