1473147857 has 4 divisors (see below), whose sum is σ = 1474032180. Its totient is φ = 1472263536.

The previous prime is 1473147833. The next prime is 1473147877. The reversal of 1473147857 is 7587413741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1214452801 + 258695056 = 34849^2 + 16084^2 .

It is a cyclic number.

It is not a de Polignac number, because 1473147857 - 2⁸ = 1473147601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1473147877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439658 + ... + 442995.

It is an arithmetic number, because the mean of its divisors is an integer number (368508045).

Almost surely, 2^1473147857 is an apocalyptic number.

It is an amenable number.

1473147857 is a deficient number, since it is larger than the sum of its proper divisors (884323).

1473147857 is an equidigital number, since it uses as much as digits as its factorization.

1473147857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884322.

The product of its digits is 658560, while the sum is 47.

The square root of 1473147857 is about 38381.6083170052. The cubic root of 1473147857 is about 1137.8423992304.

The spelling of 1473147857 in words is "one billion, four hundred seventy-three million, one hundred forty-seven thousand, eight hundred fifty-seven".