11531375 has 8 divisors (see below), whose sum is σ = 14391312. Its totient is φ = 9225000.

The previous prime is 11531371. The next prime is 11531407. The reversal of 11531375 is 57313511.

It is not a de Polignac number, because 11531375 - 2² = 11531371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46001 + ... + 46250.

It is an arithmetic number, because the mean of its divisors is an integer number (1798914).

Almost surely, 2^11531375 is an apocalyptic number.

11531375 is a deficient number, since it is larger than the sum of its proper divisors (2859937).

11531375 is an frugal number, since it uses more digits than its factorization.

11531375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92266 (or 92256 counting only the distinct ones).

The product of its digits is 1575, while the sum is 26.

The square root of 11531375 is about 3395.7878320060. The cubic root of 11531375 is about 225.9229577896.

Adding to 11531375 its reverse (57313511), we get a palindrome (68844886).

The spelling of 11531375 in words is "eleven million, five hundred thirty-one thousand, three hundred seventy-five".