11378533 has 4 divisors (see below), whose sum is σ = 11419308. Its totient is φ = 11337760.

The previous prime is 11378509. The next prime is 11378539. The reversal of 11378533 is 33587311.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4072324 + 7306209 = 2018^2 + 2703^2 .

It is a cyclic number.

It is not a de Polignac number, because 11378533 - 2⁵ = 11378501 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11378495 and 11378504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11378539) 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, 19966 + ... + 20527.

It is an arithmetic number, because the mean of its divisors is an integer number (2854827).

Almost surely, 2^11378533 is an apocalyptic number.

It is an amenable number.

11378533 is a deficient number, since it is larger than the sum of its proper divisors (40775).

11378533 is an equidigital number, since it uses as much as digits as its factorization.

11378533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40774.

The product of its digits is 7560, while the sum is 31.

The square root of 11378533 is about 3373.2081169119. The cubic root of 11378533 is about 224.9203537029.

It can be divided in two parts, 11378 and 533, that added together give a palindrome (11911).

The spelling of 11378533 in words is "eleven million, three hundred seventy-eight thousand, five hundred thirty-three".