1145728032273 has 72 divisors (see below), whose sum is σ = 1923547411968. Its totient is φ = 655590672000.

The previous prime is 1145728032227. The next prime is 1145728032283. The reversal of 1145728032273 is 3722308275411.

1145728032273 is a `hidden beast` number, since 1 + 1 + 4 + 572 + 8 + 0 + 3 + 2 + 2 + 73 = 666.

It is not a de Polignac number, because 1145728032273 - 2¹⁰ = 1145728031249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145728032283) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 970236 + ... + 1798002.

Almost surely, 2^{1145728032273} is an apocalyptic number.

It is an amenable number.

1145728032273 is a deficient number, since it is larger than the sum of its proper divisors (777819379695).

1145728032273 is a wasteful number, since it uses less digits than its factorization.

1145728032273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827867 (or 827853 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 1145728032273 in words is "one trillion, one hundred forty-five billion, seven hundred twenty-eight million, thirty-two thousand, two hundred seventy-three".