1128597 has 4 divisors (see below), whose sum is σ = 1504800. Its totient is φ = 752396.

The previous prime is 1128583. The next prime is 1128599. The reversal of 1128597 is 7958211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7958211 = 3 ⋅2652737.

It is a cyclic number.

It is not a de Polignac number, because 1128597 - 2¹⁰ = 1127573 is a prime.

It is a D-number.

1128597 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188097 + ... + 188102.

It is an arithmetic number, because the mean of its divisors is an integer number (376200).

2^1128597 is an apocalyptic number.

It is an amenable number.

1128597 is a deficient number, since it is larger than the sum of its proper divisors (376203).

1128597 is an equidigital number, since it uses as much as digits as its factorization.

1128597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376202.

The product of its digits is 5040, while the sum is 33.

The square root of 1128597 is about 1062.3544606204. The cubic root of 1128597 is about 104.1149185812.

The spelling of 1128597 in words is "one million, one hundred twenty-eight thousand, five hundred ninety-seven".