11421542 has 8 divisors (see below), whose sum is σ = 18689832. Its totient is φ = 5191600.

The previous prime is 11421533. The next prime is 11421551. The reversal of 11421542 is 24512411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11421533) and next prime (11421551).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 259559 + ... + 259602.

It is an arithmetic number, because the mean of its divisors is an integer number (2336229).

Almost surely, 2^11421542 is an apocalyptic number.

11421542 is a deficient number, since it is larger than the sum of its proper divisors (7268290).

11421542 is a wasteful number, since it uses less digits than its factorization.

11421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519174.

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

The square root of 11421542 is about 3379.5771924902. The cubic root of 11421542 is about 225.2033848227.

Adding to 11421542 its reverse (24512411), we get a palindrome (35933953).

The spelling of 11421542 in words is "eleven million, four hundred twenty-one thousand, five hundred forty-two".