1430221361 has 2 divisors, whose sum is σ = 1430221362. Its totient is φ = 1430221360.

The previous prime is 1430221297. The next prime is 1430221369. The reversal of 1430221361 is 1631220341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337291761 + 92929600 = 36569^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430221361 - 2⁶ = 1430221297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1430221369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715110680 + 715110681.

It is an arithmetic number, because the mean of its divisors is an integer number (715110681).

Almost surely, 2^1430221361 is an apocalyptic number.

It is an amenable number.

1430221361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430221361 is an equidigital number, since it uses as much as digits as its factorization.

1430221361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1430221361 is about 37818.2675568303. The cubic root of 1430221361 is about 1126.6813013030.

The spelling of 1430221361 in words is "one billion, four hundred thirty million, two hundred twenty-one thousand, three hundred sixty-one".