142247232 has 112 divisors (see below), whose sum is σ = 421111680. Its totient is φ = 47084544.

The previous prime is 142247227. The next prime is 142247269. The reversal of 142247232 is 232742241.

142247232 is a `hidden beast` number, since 1 + 422 + 4 + 7 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142247196 and 142247205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454308 + ... + 454620.

Almost surely, 2^142247232 is an apocalyptic number.

142247232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142247232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210555840).

142247232 is an abundant number, since it is smaller than the sum of its proper divisors (278864448).

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

142247232 is a wasteful number, since it uses less digits than its factorization.

142247232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 581 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 142247232 is about 11926.7444007156. The cubic root of 142247232 is about 522.0129472281.

Adding to 142247232 its reverse (232742241), we get a palindrome (374989473).

The spelling of 142247232 in words is "one hundred forty-two million, two hundred forty-seven thousand, two hundred thirty-two".