1430013989 has 2 divisors, whose sum is σ = 1430013990. Its totient is φ = 1430013988.

The previous prime is 1430013961. The next prime is 1430014013. The reversal of 1430013989 is 9893100341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860952964 + 569061025 = 29342^2 + 23855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430013989 - 2⁸ = 1430013733 is a prime.

It is a Sophie Germain 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 (1430013919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715006994 + 715006995.

It is an arithmetic number, because the mean of its divisors is an integer number (715006995).

Almost surely, 2^1430013989 is an apocalyptic number.

It is an amenable number.

1430013989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430013989 is an equidigital number, since it uses as much as digits as its factorization.

1430013989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1430013989 is about 37815.5257665420. The cubic root of 1430013989 is about 1126.6268450596.

The spelling of 1430013989 in words is "one billion, four hundred thirty million, thirteen thousand, nine hundred eighty-nine".