11223975 has 24 divisors (see below), whose sum is σ = 21208960. Its totient is φ = 5130720.

The previous prime is 11223973. The next prime is 11223997. The reversal of 11223975 is 57932211.

It is not a de Polignac number, because 11223975 - 2¹ = 11223973 is a prime.

It is a super-2 number, since 2×11223975² = 251955229601250, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223973) 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 23 ways as a sum of consecutive naturals, for example, 10165 + ... + 11214.

Almost surely, 2^11223975 is an apocalyptic number.

11223975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11223975 is a deficient number, since it is larger than the sum of its proper divisors (9984985).

11223975 is a wasteful number, since it uses less digits than its factorization.

11223975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21399 (or 21394 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 11223975 is about 3350.2201420205. The cubic root of 11223975 is about 223.8973208718.

The spelling of 11223975 in words is "eleven million, two hundred twenty-three thousand, nine hundred seventy-five".