1430225561 has 2 divisors, whose sum is σ = 1430225562. Its totient is φ = 1430225560.

The previous prime is 1430225507. The next prime is 1430225593. The reversal of 1430225561 is 1655220341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1188111961 + 242113600 = 34469^2 + 15560^2 .

It is an emirp because it is prime and its reverse (1655220341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1430225561 - 2⁶ = 1430225497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1430224561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715112780 + 715112781.

It is an arithmetic number, because the mean of its divisors is an integer number (715112781).

Almost surely, 2^1430225561 is an apocalyptic number.

It is an amenable number.

1430225561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430225561 is an equidigital number, since it uses as much as digits as its factorization.

1430225561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1430225561 is about 37818.3230855098. The cubic root of 1430225561 is about 1126.6824041758.

The spelling of 1430225561 in words is "one billion, four hundred thirty million, two hundred twenty-five thousand, five hundred sixty-one".