23514221 has 2 divisors, whose sum is σ = 23514222. Its totient is φ = 23514220.

The previous prime is 23514209. The next prime is 23514223. The reversal of 23514221 is 12241532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16491721 + 7022500 = 4061^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 23514221 - 2²² = 19319917 is a prime.

Together with 23514223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23514193 and 23514202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23514223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11757110 + 11757111.

It is an arithmetic number, because the mean of its divisors is an integer number (11757111).

Almost surely, 2^23514221 is an apocalyptic number.

It is an amenable number.

23514221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23514221 is an equidigital number, since it uses as much as digits as its factorization.

23514221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 23514221 is about 4849.1464197320. The cubic root of 23514221 is about 286.4904822993.

Adding to 23514221 its reverse (12241532), we get a palindrome (35755753).

The spelling of 23514221 in words is "twenty-three million, five hundred fourteen thousand, two hundred twenty-one".