11421524 has 12 divisors (see below), whose sum is σ = 20856864. Its totient is φ = 5462424.

The previous prime is 11421523. The next prime is 11421533. The reversal of 11421524 is 42512411.

It is a happy number.

11421524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11421496 and 11421505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61982 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (1738072).

Almost surely, 2^11421524 is an apocalyptic number.

It is an amenable number.

11421524 is a deficient number, since it is larger than the sum of its proper divisors (9435340).

11421524 is a wasteful number, since it uses less digits than its factorization.

11421524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124174 (or 124172 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 11421524 is about 3379.5745294341. The cubic root of 11421524 is about 225.2032665181.

Adding to 11421524 its reverse (42512411), we get a palindrome (53933935).

The spelling of 11421524 in words is "eleven million, four hundred twenty-one thousand, five hundred twenty-four".