10145321 has 4 divisors (see below), whose sum is σ = 10284372. Its totient is φ = 10006272.

The previous prime is 10145299. The next prime is 10145329. The reversal of 10145321 is 12354101.

10145321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1960000 + 8185321 = 1400^2 + 2861^2 .

It is a cyclic number.

It is not a de Polignac number, because 10145321 - 2¹⁰ = 10144297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10145321.

It is not an unprimeable number, because it can be changed into a prime (10145329) 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, 69416 + ... + 69561.

It is an arithmetic number, because the mean of its divisors is an integer number (2571093).

Almost surely, 2^10145321 is an apocalyptic number.

It is an amenable number.

10145321 is a deficient number, since it is larger than the sum of its proper divisors (139051).

10145321 is an equidigital number, since it uses as much as digits as its factorization.

10145321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139050.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10145321 is about 3185.1720518678. The cubic root of 10145321 is about 216.4820694632.

Adding to 10145321 its reverse (12354101), we get a palindrome (22499422).

The spelling of 10145321 in words is "ten million, one hundred forty-five thousand, three hundred twenty-one".