142231616 has 28 divisors (see below), whose sum is σ = 288810192. Its totient is φ = 69460608.

The previous prime is 142231613. The next prime is 142231637. The reversal of 142231616 is 616132241.

It is not an unprimeable number, because it can be changed into a prime (142231613) 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, 23090 + ... + 28593.

Almost surely, 2^142231616 is an apocalyptic number.

142231616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142231616 is an abundant number, since it is smaller than the sum of its proper divisors (146578576).

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

142231616 is an equidigital number, since it uses as much as digits as its factorization.

142231616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51738 (or 51728 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 142231616 is about 11926.0897196021. The cubic root of 142231616 is about 521.9938442143.

Adding to 142231616 its reverse (616132241), we get a palindrome (758363857).

The spelling of 142231616 in words is "one hundred forty-two million, two hundred thirty-one thousand, six hundred sixteen".