147305057 has 16 divisors (see below), whose sum is σ = 155168640. Its totient is φ = 139708800.

The previous prime is 147305023. The next prime is 147305077. The reversal of 147305057 is 750503741.

It is a cyclic number.

It is not a de Polignac number, because 147305057 - 2²² = 143110753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147305077) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 233132 + ... + 233762.

It is an arithmetic number, because the mean of its divisors is an integer number (9698040).

Almost surely, 2^147305057 is an apocalyptic number.

It is an amenable number.

147305057 is a deficient number, since it is larger than the sum of its proper divisors (7863583).

147305057 is an equidigital number, since it uses as much as digits as its factorization.

147305057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 147305057 is about 12136.9294716580. The cubic root of 147305057 is about 528.1280310599.

Adding to 147305057 its reverse (750503741), we get a palindrome (897808798).

The spelling of 147305057 in words is "one hundred forty-seven million, three hundred five thousand, fifty-seven".