1430532989 has 2 divisors, whose sum is σ = 1430532990. Its totient is φ = 1430532988.

The previous prime is 1430532973. The next prime is 1430533003. The reversal of 1430532989 is 9892350341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075512025 + 355020964 = 32795^2 + 18842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430532989 - 2⁴ = 1430532973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430535989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715266494 + 715266495.

It is an arithmetic number, because the mean of its divisors is an integer number (715266495).

Almost surely, 2^1430532989 is an apocalyptic number.

It is an amenable number.

1430532989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430532989 is an equidigital number, since it uses as much as digits as its factorization.

1430532989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1430532989 is about 37822.3874048162. The cubic root of 1430532989 is about 1126.7631254534.

The spelling of 1430532989 in words is "one billion, four hundred thirty million, five hundred thirty-two thousand, nine hundred eighty-nine".