142144471 has 16 divisors (see below), whose sum is σ = 165680640. Its totient is φ = 119440800.

The previous prime is 142144469. The next prime is 142144477. The reversal of 142144471 is 174441241.

It is a cyclic number.

It is not a de Polignac number, because 142144471 - 2¹ = 142144469 is a prime.

It is a super-3 number, since 3×142144471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142144477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74710 + ... + 76588.

It is an arithmetic number, because the mean of its divisors is an integer number (10355040).

Almost surely, 2^142144471 is an apocalyptic number.

142144471 is a deficient number, since it is larger than the sum of its proper divisors (23536169).

142144471 is a wasteful number, since it uses less digits than its factorization.

142144471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094.

The product of its digits is 3584, while the sum is 28.

The square root of 142144471 is about 11922.4356152592. The cubic root of 142144471 is about 521.8872142718.

The spelling of 142144471 in words is "one hundred forty-two million, one hundred forty-four thousand, four hundred seventy-one".