11381975 has 12 divisors (see below), whose sum is σ = 15397080. Its totient is φ = 8277600.

The previous prime is 11381963. The next prime is 11381983. The reversal of 11381975 is 57918311.

11381975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11381975 - 2⁸ = 11381719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20420 + ... + 20969.

It is an arithmetic number, because the mean of its divisors is an integer number (1283090).

Almost surely, 2^11381975 is an apocalyptic number.

11381975 is a deficient number, since it is larger than the sum of its proper divisors (4015105).

11381975 is a wasteful number, since it uses less digits than its factorization.

11381975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41410 (or 41405 counting only the distinct ones).

The product of its digits is 7560, while the sum is 35.

The square root of 11381975 is about 3373.7182751380. The cubic root of 11381975 is about 224.9430308443.

It can be divided in two parts, 1138 and 1975, that added together give a palindrome (3113).

The spelling of 11381975 in words is "eleven million, three hundred eighty-one thousand, nine hundred seventy-five".