142163784 has 48 divisors (see below), whose sum is σ = 440032320. Its totient is φ = 40618080.

The previous prime is 142163773. The next prime is 142163789. The reversal of 142163784 is 487361241.

142163784 is a `hidden beast` number, since 14 + 2 + 1 + 637 + 8 + 4 = 666.

142163784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142163789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140532 + ... + 141539.

It is an arithmetic number, because the mean of its divisors is an integer number (9167340).

Almost surely, 2^142163784 is an apocalyptic number.

142163784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142163784 is an abundant number, since it is smaller than the sum of its proper divisors (297868536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142163784 is a wasteful number, since it uses less digits than its factorization.

142163784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282090 (or 282083 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 142163784 is about 11923.2455313140. The cubic root of 142163784 is about 521.9108492662.

The spelling of 142163784 in words is "one hundred forty-two million, one hundred sixty-three thousand, seven hundred eighty-four".