1131241 has 4 divisors (see below), whose sum is σ = 1190800. Its totient is φ = 1071684.

The previous prime is 1131239. The next prime is 1131253. The reversal of 1131241 is 1421311.

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: 1421311 = 149 ⋅9539.

It is a cyclic number.

It is not a de Polignac number, because 1131241 - 2¹ = 1131239 is a prime.

It is a Duffinian number.

1131241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1131271) 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, 29751 + ... + 29788.

It is an arithmetic number, because the mean of its divisors is an integer number (297700).

2^1131241 is an apocalyptic number.

It is an amenable number.

1131241 is a deficient number, since it is larger than the sum of its proper divisors (59559).

1131241 is an equidigital number, since it uses as much as digits as its factorization.

1131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59558.

The product of its digits is 24, while the sum is 13.

The square root of 1131241 is about 1063.5981383963. The cubic root of 1131241 is about 104.1961596133.

Adding to 1131241 its reverse (1421311), we get a palindrome (2552552).

The spelling of 1131241 in words is "one million, one hundred thirty-one thousand, two hundred forty-one".