1145473 has 12 divisors (see below), whose sum is σ = 1351812. Its totient is φ = 967680.

The previous prime is 1145461. The next prime is 1145479. The reversal of 1145473 is 3745411.

1145473 = 57² + 58² + ... + 153².

It can be written as a sum of positive squares in 2 ways, for example, as 693889 + 451584 = 833^2 + 672^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1145473 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1145479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4633 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (112651).

2^1145473 is an apocalyptic number.

It is an amenable number.

1145473 is a deficient number, since it is larger than the sum of its proper divisors (206339).

1145473 is an equidigital number, since it uses as much as digits as its factorization.

1145473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 345 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 1145473 is about 1070.2677235159. The cubic root of 1145473 is about 104.6312994403.

The spelling of 1145473 in words is "one million, one hundred forty-five thousand, four hundred seventy-three".