1133481 has 4 divisors (see below), whose sum is σ = 1511312. Its totient is φ = 755652.

The previous prime is 1133479. The next prime is 1133501. The reversal of 1133481 is 1843311.

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: 1843311 = 3 ⋅614437.

It is not a de Polignac number, because 1133481 - 2¹ = 1133479 is a prime.

It is a super-2 number, since 2×1133481² = 2569558354722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133381) 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, 188911 + ... + 188916.

It is an arithmetic number, because the mean of its divisors is an integer number (377828).

2^1133481 is an apocalyptic number.

It is an amenable number.

1133481 is a deficient number, since it is larger than the sum of its proper divisors (377831).

1133481 is an equidigital number, since it uses as much as digits as its factorization.

1133481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377830.

The product of its digits is 288, while the sum is 21.

The square root of 1133481 is about 1064.6506469260. The cubic root of 1133481 is about 104.2648881198.

Adding to 1133481 its reverse (1843311), we get a palindrome (2976792).

The spelling of 1133481 in words is "one million, one hundred thirty-three thousand, four hundred eighty-one".