1241155 has 4 divisors (see below), whose sum is σ = 1489392. Its totient is φ = 992920.

The previous prime is 1241087. The next prime is 1241159. The reversal of 1241155 is 5511421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1241155 - 2⁷ = 1241027 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1241159) 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, 124111 + ... + 124120.

It is an arithmetic number, because the mean of its divisors is an integer number (372348).

2^1241155 is an apocalyptic number.

1241155 is a deficient number, since it is larger than the sum of its proper divisors (248237).

1241155 is an equidigital number, since it uses as much as digits as its factorization.

1241155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248236.

The product of its digits is 200, while the sum is 19.

The square root of 1241155 is about 1114.0713621667. The cubic root of 1241155 is about 107.4670531809.

Adding to 1241155 its reverse (5511421), we get a palindrome (6752576).

The spelling of 1241155 in words is "one million, two hundred forty-one thousand, one hundred fifty-five".