11401265 has 4 divisors (see below), whose sum is σ = 13681524. Its totient is φ = 9121008.

The previous prime is 11401259. The next prime is 11401267. The reversal of 11401265 is 56210411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56210411 = 1657 ⋅33923.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 4765489 = 2576^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 11401265 - 2⁴ = 11401249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11401267) 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 3 ways as a sum of consecutive naturals, for example, 1140122 + ... + 1140131.

It is an arithmetic number, because the mean of its divisors is an integer number (3420381).

Almost surely, 2^11401265 is an apocalyptic number.

It is an amenable number.

11401265 is a deficient number, since it is larger than the sum of its proper divisors (2280259).

11401265 is an equidigital number, since it uses as much as digits as its factorization.

11401265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280258.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11401265 is about 3376.5759283629. The cubic root of 11401265 is about 225.0700358108.

Adding to 11401265 its reverse (56210411), we get a palindrome (67611676).

The spelling of 11401265 in words is "eleven million, four hundred one thousand, two hundred sixty-five".