1400003221 has 2 divisors, whose sum is σ = 1400003222. Its totient is φ = 1400003220.

The previous prime is 1400003191. The next prime is 1400003273. The reversal of 1400003221 is 1223000041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 949502596 + 450500625 = 30814^2 + 21225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400003221 - 2⁷ = 1400003093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400003291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700001610 + 700001611.

It is an arithmetic number, because the mean of its divisors is an integer number (700001611).

Almost surely, 2^1400003221 is an apocalyptic number.

It is an amenable number.

1400003221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400003221 is an equidigital number, since it uses as much as digits as its factorization.

1400003221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1400003221 is about 37416.6169101377. The cubic root of 1400003221 is about 1118.6898000086.

Adding to 1400003221 its reverse (1223000041), we get a palindrome (2623003262).

The spelling of 1400003221 in words is "one billion, four hundred million, three thousand, two hundred twenty-one".