11542421 has 8 divisors (see below), whose sum is σ = 12684000. Its totient is φ = 10416240.

The previous prime is 11542417. The next prime is 11542423. The reversal of 11542421 is 12424511.

It is a happy number.

11542421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11542421 - 2² = 11542417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11542393 and 11542402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2246 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (1585500).

Almost surely, 2^11542421 is an apocalyptic number.

11542421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11542421 is a deficient number, since it is larger than the sum of its proper divisors (1141579).

11542421 is a wasteful number, since it uses less digits than its factorization.

11542421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699.

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

The square root of 11542421 is about 3397.4138694013. The cubic root of 11542421 is about 225.9950725947.

Adding to 11542421 its reverse (12424511), we get a palindrome (23966932).

The spelling of 11542421 in words is "eleven million, five hundred forty-two thousand, four hundred twenty-one".