147881572 has 12 divisors (see below), whose sum is σ = 274015980. Its totient is φ = 69591296.

The previous prime is 147881561. The next prime is 147881603. The reversal of 147881572 is 275188741.

It can be written as a sum of positive squares in 2 ways, for example, as 106998336 + 40883236 = 10344^2 + 6394^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087297 + ... + 1087432.

It is an arithmetic number, because the mean of its divisors is an integer number (22834665).

Almost surely, 2^147881572 is an apocalyptic number.

It is an amenable number.

147881572 is a deficient number, since it is larger than the sum of its proper divisors (126134408).

147881572 is a wasteful number, since it uses less digits than its factorization.

147881572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174750 (or 2174748 counting only the distinct ones).

The product of its digits is 125440, while the sum is 43.

The square root of 147881572 is about 12160.6567256871. The cubic root of 147881572 is about 528.8161209965.

The spelling of 147881572 in words is "one hundred forty-seven million, eight hundred eighty-one thousand, five hundred seventy-two".