11421075 has 24 divisors (see below), whose sum is σ = 19003248. Its totient is φ = 6052480.

The previous prime is 11421061. The next prime is 11421077. The reversal of 11421075 is 57012411.

It is a happy number.

11421075 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11421075 - 2⁷ = 11420947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11421077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14389 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (791802).

Almost surely, 2^11421075 is an apocalyptic number.

11421075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11421075 is a deficient number, since it is larger than the sum of its proper divisors (7582173).

11421075 is a wasteful number, since it uses less digits than its factorization.

11421075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 11421075 is about 3379.5081003010. The cubic root of 11421075 is about 225.2003154352.

Adding to 11421075 its reverse (57012411), we get a palindrome (68433486).

The spelling of 11421075 in words is "eleven million, four hundred twenty-one thousand, seventy-five".