1512669989 has 2 divisors, whose sum is σ = 1512669990. Its totient is φ = 1512669988.

The previous prime is 1512669973. The next prime is 1512670057. The reversal of 1512669989 is 9899662151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1356669889 + 156000100 = 36833^2 + 12490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1512669989 - 2⁴ = 1512669973 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 (1512669089) 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, 756334994 + 756334995.

It is an arithmetic number, because the mean of its divisors is an integer number (756334995).

Almost surely, 2^1512669989 is an apocalyptic number.

It is an amenable number.

1512669989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1512669989 is an equidigital number, since it uses as much as digits as its factorization.

1512669989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 56.

The square root of 1512669989 is about 38893.0583652147. The cubic root of 1512669989 is about 1147.9282141068.

The spelling of 1512669989 in words is "one billion, five hundred twelve million, six hundred sixty-nine thousand, nine hundred eighty-nine".