142240164 has 48 divisors (see below), whose sum is σ = 363853056. Its totient is φ = 42890400.

The previous prime is 142240141. The next prime is 142240169. The reversal of 142240164 is 461042241.

It is a happy number.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142240169) 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 15 ways as a sum of consecutive naturals, for example, 25299 + ... + 30405.

It is an arithmetic number, because the mean of its divisors is an integer number (7580272).

Almost surely, 2^142240164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142240164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181926528).

142240164 is an abundant number, since it is smaller than the sum of its proper divisors (221612892).

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

142240164 is a wasteful number, since it uses less digits than its factorization.

142240164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336 (or 5334 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 142240164 is about 11926.4480881778. The cubic root of 142240164 is about 522.0043011345.

The spelling of 142240164 in words is "one hundred forty-two million, two hundred forty thousand, one hundred sixty-four".