10421751 has 4 divisors (see below), whose sum is σ = 13895672. Its totient is φ = 6947832.

The previous prime is 10421713. The next prime is 10421779. The reversal of 10421751 is 15712401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15712401 = 3 ⋅5237467.

It is not a de Polignac number, because 10421751 - 2⁶ = 10421687 is a prime.

It is a super-2 number, since 2×10421751² = 217225787812002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421711) 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, 1736956 + ... + 1736961.

It is an arithmetic number, because the mean of its divisors is an integer number (3473918).

Almost surely, 2^10421751 is an apocalyptic number.

10421751 is a deficient number, since it is larger than the sum of its proper divisors (3473921).

10421751 is an equidigital number, since it uses as much as digits as its factorization.

10421751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473920.

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

The square root of 10421751 is about 3228.2736872824. The cubic root of 10421751 is about 218.4306429987.

The spelling of 10421751 in words is "ten million, four hundred twenty-one thousand, seven hundred fifty-one".