11453481 has 40 divisors (see below), whose sum is σ = 18803400. Its totient is φ = 6905088.

The previous prime is 11453467. The next prime is 11453489. The reversal of 11453481 is 18435411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2025 + 11451456 = 45^2 + 3384^2 .

It is not a de Polignac number, because 11453481 - 2⁶ = 11453417 is a prime.

It is a super-2 number, since 2×11453481² = 262364454034722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11453489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 76795 + ... + 76943.

It is an arithmetic number, because the mean of its divisors is an integer number (470085).

It is a vampire number, since it can be written as 1341 ⋅ 8541 (with its own digits).

Almost surely, 2^11453481 is an apocalyptic number.

It is an amenable number.

11453481 is a deficient number, since it is larger than the sum of its proper divisors (7349919).

11453481 is a wasteful number, since it uses less digits than its factorization.

11453481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 238 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 11453481 is about 3384.2991889016. The cubic root of 11453481 is about 225.4131077225.

Adding to 11453481 its reverse (18435411), we get a palindrome (29888892).

The spelling of 11453481 in words is "eleven million, four hundred fifty-three thousand, four hundred eighty-one".