142381532 has 24 divisors (see below), whose sum is σ = 262634400. Its totient is φ = 67436096.

The previous prime is 142381517. The next prime is 142381537. The reversal of 142381532 is 235183241.

It is a happy number.

142381532 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 (29).

It is a junction number, because it is equal to n+sod(n) for n = 142381495 and 142381504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142381537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5432 + ... + 17727.

It is an arithmetic number, because the mean of its divisors is an integer number (10943100).

Almost surely, 2^142381532 is an apocalyptic number.

It is an amenable number.

142381532 is a deficient number, since it is larger than the sum of its proper divisors (120252868).

142381532 is a wasteful number, since it uses less digits than its factorization.

142381532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23245 (or 23243 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 142381532 is about 11932.3732760922. The cubic root of 142381532 is about 522.1771783961.

The spelling of 142381532 in words is "one hundred forty-two million, three hundred eighty-one thousand, five hundred thirty-two".