1155073 has 4 divisors (see below), whose sum is σ = 1165780. Its totient is φ = 1144368.

The previous prime is 1155071. The next prime is 1155097. The reversal of 1155073 is 3705511.

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 350464 + 804609 = 592^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155073 - 2¹ = 1155071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (291445).

It is a Proth number, since it is equal to 141 ⋅ 2¹³ + 1 and 141 < 2¹³.

2^1155073 is an apocalyptic number.

It is an amenable number.

1155073 is a deficient number, since it is larger than the sum of its proper divisors (10707).

1155073 is a wasteful number, since it uses less digits than its factorization.

1155073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 1155073 is about 1074.7432251473. The cubic root of 1155073 is about 104.9227852576.

The spelling of 1155073 in words is "one million, one hundred fifty-five thousand, seventy-three".