1155393 has 6 divisors (see below), whose sum is σ = 1668914. Its totient is φ = 770256.

The previous prime is 1155379. The next prime is 1155403. The reversal of 1155393 is 3935511.

It can be written as a sum of positive squares in only one way, i.e., 1034289 + 121104 = 1017^2 + 348^2 .

It is not a de Polignac number, because 1155393 - 2⁴ = 1155377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64180 + ... + 64197.

2^1155393 is an apocalyptic number.

It is an amenable number.

1155393 is a deficient number, since it is larger than the sum of its proper divisors (513521).

1155393 is a wasteful number, since it uses less digits than its factorization.

1155393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128383 (or 128380 counting only the distinct ones).

The product of its digits is 2025, while the sum is 27.

The square root of 1155393 is about 1074.8920876069. The cubic root of 1155393 is about 104.9324735893.

The spelling of 1155393 in words is "one million, one hundred fifty-five thousand, three hundred ninety-three".