11421751 has 8 divisors (see below), whose sum is σ = 12672000. Its totient is φ = 10206840.

The previous prime is 11421749. The next prime is 11421757. The reversal of 11421751 is 15712411.

11421751 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 11421751 - 2¹ = 11421749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421757) 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, 8151 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (1584000).

Almost surely, 2^11421751 is an apocalyptic number.

11421751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11421751 is a deficient number, since it is larger than the sum of its proper divisors (1250249).

11421751 is a wasteful number, since it uses less digits than its factorization.

11421751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17669.

The product of its digits is 280, while the sum is 22.

The square root of 11421751 is about 3379.6081133765. The cubic root of 11421751 is about 225.2047584615.

The spelling of 11421751 in words is "eleven million, four hundred twenty-one thousand, seven hundred fifty-one".