11381465 has 4 divisors (see below), whose sum is σ = 13657764. Its totient is φ = 9105168.

The previous prime is 11381443. The next prime is 11381467. The reversal of 11381465 is 56418311.

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 7038409 + 4343056 = 2653^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 11381465 - 2¹⁶ = 11315929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11381467) 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, 1138142 + ... + 1138151.

It is an arithmetic number, because the mean of its divisors is an integer number (3414441).

Almost surely, 2^11381465 is an apocalyptic number.

It is an amenable number.

11381465 is a deficient number, since it is larger than the sum of its proper divisors (2276299).

11381465 is an equidigital number, since it uses as much as digits as its factorization.

11381465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276298.

The product of its digits is 2880, while the sum is 29.

The square root of 11381465 is about 3373.6426900311. The cubic root of 11381465 is about 224.9396710683.

Adding to 11381465 its reverse (56418311), we get a palindrome (67799776).

The spelling of 11381465 in words is "eleven million, three hundred eighty-one thousand, four hundred sixty-five".