147791872 has 28 divisors (see below), whose sum is σ = 295582086. Its totient is φ = 73891840.

The previous prime is 147791867. The next prime is 147791893. The reversal of 147791872 is 278197741.

It can be written as a sum of positive squares in only one way, i.e., 146313216 + 1478656 = 12096^2 + 1216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829 + ... + 17212.

Almost surely, 2^147791872 is an apocalyptic number.

It is an amenable number.

147791872 is a deficient number, since it is larger than the sum of its proper divisors (147790214).

147791872 is an frugal number, since it uses more digits than its factorization.

147791872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067 (or 18043 counting only the distinct ones).

The product of its digits is 197568, while the sum is 46.

The square root of 147791872 is about 12156.9680430607. The cubic root of 147791872 is about 528.7091786655.

The spelling of 147791872 in words is "one hundred forty-seven million, seven hundred ninety-one thousand, eight hundred seventy-two".