10144421 has 6 divisors (see below), whose sum is σ = 11800710. Its totient is φ = 8695176.

The previous prime is 10144417. The next prime is 10144457. The reversal of 10144421 is 12444101.

10144421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 196 = 3185^2 + 14^2 .

It is not a de Polignac number, because 10144421 - 2² = 10144417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10144421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10144411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103466 + ... + 103563.

It is an arithmetic number, because the mean of its divisors is an integer number (1966785).

Almost surely, 2^10144421 is an apocalyptic number.

It is an amenable number.

10144421 is a deficient number, since it is larger than the sum of its proper divisors (1656289).

10144421 is an equidigital number, since it uses as much as digits as its factorization.

10144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207043 (or 207036 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 10144421 is about 3185.0307690821. The cubic root of 10144421 is about 216.4756678381.

Adding to 10144421 its reverse (12444101), we get a palindrome (22588522).

The spelling of 10144421 in words is "ten million, one hundred forty-four thousand, four hundred twenty-one".