1417530221 has 2 divisors, whose sum is σ = 1417530222. Its totient is φ = 1417530220.

The previous prime is 1417530173. The next prime is 1417530223. The reversal of 1417530221 is 1220357141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1098193321 + 319336900 = 33139^2 + 17870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1417530221 - 2²⁶ = 1350421357 is a prime.

It is a Sophie Germain prime.

Together with 1417530223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1417530223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708765110 + 708765111.

It is an arithmetic number, because the mean of its divisors is an integer number (708765111).

Almost surely, 2^1417530221 is an apocalyptic number.

It is an amenable number.

1417530221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1417530221 is an equidigital number, since it uses as much as digits as its factorization.

1417530221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1417530221 is about 37650.1025363810. The cubic root of 1417530221 is about 1123.3388411376.

Adding to 1417530221 its reverse (1220357141), we get a palindrome (2637887362).

It can be divided in two parts, 1417 and 530221, that multiplied together give a palindrome (751323157).

The spelling of 1417530221 in words is "one billion, four hundred seventeen million, five hundred thirty thousand, two hundred twenty-one".