142158432 has 48 divisors (see below), whose sum is σ = 401874480. Its totient is φ = 43740672.

The previous prime is 142158427. The next prime is 142158433. The reversal of 142158432 is 234851241.

It is a tau number, because it is divible by the number of its divisors (48).

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 142158432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142158433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55707 + ... + 58202.

It is an arithmetic number, because the mean of its divisors is an integer number (8372385).

Almost surely, 2^142158432 is an apocalyptic number.

142158432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142158432 is an abundant number, since it is smaller than the sum of its proper divisors (259716048).

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

142158432 is a wasteful number, since it uses less digits than its factorization.

142158432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113935 (or 113927 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 142158432 is about 11923.0210936658. The cubic root of 142158432 is about 521.9042997737.

The spelling of 142158432 in words is "one hundred forty-two million, one hundred fifty-eight thousand, four hundred thirty-two".