10451621 has 4 divisors (see below), whose sum is σ = 10584000. Its totient is φ = 10319244.

The previous prime is 10451599. The next prime is 10451627. The reversal of 10451621 is 12615401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10451621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10451593 and 10451602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10451627) 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, 66071 + ... + 66228.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^10451621 is an apocalyptic number.

It is an amenable number.

10451621 is a deficient number, since it is larger than the sum of its proper divisors (132379).

10451621 is an equidigital number, since it uses as much as digits as its factorization.

10451621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132378.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10451621 is about 3232.8966887298. The cubic root of 10451621 is about 218.6391268340.

The spelling of 10451621 in words is "ten million, four hundred fifty-one thousand, six hundred twenty-one".