142289232 has 20 divisors (see below), whose sum is σ = 367580640. Its totient is φ = 47429728.

The previous prime is 142289221. The next prime is 142289237. The reversal of 142289232 is 232982241.

It is a junction number, because it is equal to n+sod(n) for n = 142289193 and 142289202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142289237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1482132 + ... + 1482227.

It is an arithmetic number, because the mean of its divisors is an integer number (18379032).

Almost surely, 2^142289232 is an apocalyptic number.

142289232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142289232 is an abundant number, since it is smaller than the sum of its proper divisors (225291408).

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

142289232 is a wasteful number, since it uses less digits than its factorization.

142289232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964370 (or 2964364 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 142289232 is about 11928.5050194901. The cubic root of 142289232 is about 522.0643187873.

The spelling of 142289232 in words is "one hundred forty-two million, two hundred eighty-nine thousand, two hundred thirty-two".