11381255 has 4 divisors (see below), whose sum is σ = 13657512. Its totient is φ = 9105000.

The previous prime is 11381233. The next prime is 11381261. The reversal of 11381255 is 55218311.

It is a happy number.

11381255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55218311 = 1049 ⋅52639.

It is not a de Polignac number, because 11381255 - 2²² = 7186951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138121 + ... + 1138130.

It is an arithmetic number, because the mean of its divisors is an integer number (3414378).

Almost surely, 2^11381255 is an apocalyptic number.

11381255 is a deficient number, since it is larger than the sum of its proper divisors (2276257).

11381255 is an equidigital number, since it uses as much as digits as its factorization.

11381255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276256.

The product of its digits is 1200, while the sum is 26.

The square root of 11381255 is about 3373.6115662595. The cubic root of 11381255 is about 224.9382876020.

Adding to 11381255 its reverse (55218311), we get a palindrome (66599566).

The spelling of 11381255 in words is "eleven million, three hundred eighty-one thousand, two hundred fifty-five".