1155411 has 8 divisors (see below), whose sum is σ = 1711760. Its totient is φ = 770256.

The previous prime is 1155403. The next prime is 1155419. The reversal of 1155411 is 1145511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1155403) and next prime (1155419).

It is not a de Polignac number, because 1155411 - 2³ = 1155403 is a prime.

It is a Duffinian number.

1155411 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1155419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21370 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (213970).

2^1155411 is an apocalyptic number.

1155411 is a deficient number, since it is larger than the sum of its proper divisors (556349).

1155411 is an equidigital number, since it uses as much as digits as its factorization.

1155411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42802 (or 42796 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 1155411 is about 1074.9004605079. The cubic root of 1155411 is about 104.9330185048.

Adding to 1155411 its product of digits (100), we get a palindrome (1155511).

The spelling of 1155411 in words is "one million, one hundred fifty-five thousand, four hundred eleven".