11363641 has 3 divisors (see below), whose sum is σ = 11367013. Its totient is φ = 11360270.

The previous prime is 11363617. The next prime is 11363663. The reversal of 11363641 is 14636311.

It is a happy number.

The square root of 11363641 is 3371.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14636311 = 563 ⋅25997.

It is a de Polignac number, because none of the positive numbers 2^k-11363641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11363941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1686 + ... + 5056.

Almost surely, 2^11363641 is an apocalyptic number.

11363641 is the 3371-st square number.

11363641 is the 1686-th centered octagonal number.

It is an amenable number.

11363641 is a deficient number, since it is larger than the sum of its proper divisors (3372).

11363641 is an frugal number, since it uses more digits than its factorization.

11363641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742 (or 3371 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The cubic root of 11363641 is about 224.8221870871.

Multiplying 11363641 by its sum of digits (25), we get a square (284091025 = 16855²).

Multiplying 11363641 by its product of digits (1296), we get a square (14727278736 = 121356²).

Adding to 11363641 its reverse (14636311), we get a palindrome (25999952).

The spelling of 11363641 in words is "eleven million, three hundred sixty-three thousand, six hundred forty-one".