142887711 has 16 divisors (see below), whose sum is σ = 197084160. Its totient is φ = 91988160.

The previous prime is 142887697. The next prime is 142887763. The reversal of 142887711 is 117788241.

It is not a de Polignac number, because 142887711 - 2¹⁰ = 142886687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142887711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142887211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50995 + ... + 53723.

It is an arithmetic number, because the mean of its divisors is an integer number (12317760).

Almost surely, 2^142887711 is an apocalyptic number.

142887711 is a deficient number, since it is larger than the sum of its proper divisors (54196449).

142887711 is a wasteful number, since it uses less digits than its factorization.

142887711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326.

The product of its digits is 25088, while the sum is 39.

The square root of 142887711 is about 11953.5647821058. The cubic root of 142887711 is about 522.7952419755.

The spelling of 142887711 in words is "one hundred forty-two million, eight hundred eighty-seven thousand, seven hundred eleven".