147721112 has 32 divisors (see below), whose sum is σ = 345323520. Its totient is φ = 57553440.

The previous prime is 147721103. The next prime is 147721127. The reversal of 147721112 is 211127741.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119288 + ... + 120519.

It is an arithmetic number, because the mean of its divisors is an integer number (10791360).

Almost surely, 2^147721112 is an apocalyptic number.

It is an amenable number.

147721112 is an abundant number, since it is smaller than the sum of its proper divisors (197602408).

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

147721112 is a wasteful number, since it uses less digits than its factorization.

147721112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239831 (or 239827 counting only the distinct ones).

The product of its digits is 784, while the sum is 26.

The square root of 147721112 is about 12154.0574295171. The cubic root of 147721112 is about 528.6247864880.

Adding to 147721112 its reverse (211127741), we get a palindrome (358848853).

The spelling of 147721112 in words is "one hundred forty-seven million, seven hundred twenty-one thousand, one hundred twelve".