1155398 has 8 divisors (see below), whose sum is σ = 1752840. Its totient is φ = 571120.

The previous prime is 1155379. The next prime is 1155403. The reversal of 1155398 is 8935511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3068 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (219105).

2^1155398 is an apocalyptic number.

1155398 is a deficient number, since it is larger than the sum of its proper divisors (597442).

1155398 is an equidigital number, since it uses as much as digits as its factorization.

1155398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582.

The product of its digits is 5400, while the sum is 32.

The square root of 1155398 is about 1074.8944134193. The cubic root of 1155398 is about 104.9326249553.

The spelling of 1155398 in words is "one million, one hundred fifty-five thousand, three hundred ninety-eight".