14231021 has 6 divisors (see below), whose sum is σ = 16554510. Its totient is φ = 12197976.

The previous prime is 14231017. The next prime is 14231029. The reversal of 14231021 is 12013241.

It can be written as a sum of positive squares in only one way, i.e., 13402921 + 828100 = 3661^2 + 910^2 .

It is not a de Polignac number, because 14231021 - 2² = 14231017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14230987 and 14231005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14231029) 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, 145166 + ... + 145263.

It is an arithmetic number, because the mean of its divisors is an integer number (2759085).

Almost surely, 2^14231021 is an apocalyptic number.

It is an amenable number.

14231021 is a deficient number, since it is larger than the sum of its proper divisors (2323489).

14231021 is an equidigital number, since it uses as much as digits as its factorization.

14231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290443 (or 290436 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 14231021 is about 3772.4025500999. The cubic root of 14231021 is about 242.3326992868.

Adding to 14231021 its reverse (12013241), we get a palindrome (26244262).

The spelling of 14231021 in words is "fourteen million, two hundred thirty-one thousand, twenty-one".