10051645 has 4 divisors (see below), whose sum is σ = 12061980. Its totient is φ = 8041312.

The previous prime is 10051631. The next prime is 10051649. The reversal of 10051645 is 54615001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1301881 + 8749764 = 1141^2 + 2958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10051645 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10051649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005160 + ... + 1005169.

It is an arithmetic number, because the mean of its divisors is an integer number (3015495).

Almost surely, 2^10051645 is an apocalyptic number.

It is an amenable number.

10051645 is a deficient number, since it is larger than the sum of its proper divisors (2010335).

10051645 is an equidigital number, since it uses as much as digits as its factorization.

10051645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010334.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 10051645 is about 3170.4329357361. The cubic root of 10051645 is about 215.8137182806.

Adding to 10051645 its reverse (54615001), we get a palindrome (64666646).

The spelling of 10051645 in words is "ten million, fifty-one thousand, six hundred forty-five".