1319988089 has 32 divisors (see below), whose sum is σ = 1567137792. Its totient is φ = 1088640000.

The previous prime is 1319988053. The next prime is 1319988119. The reversal of 1319988089 is 9808899131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1319988089 is a prime.

It is a super-3 number, since 3×1319988089³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1319988889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5477009 + ... + 5477249.

It is an arithmetic number, because the mean of its divisors is an integer number (48973056).

Almost surely, 2^1319988089 is an apocalyptic number.

It is an amenable number.

1319988089 is a deficient number, since it is larger than the sum of its proper divisors (247149703).

1319988089 is a wasteful number, since it uses less digits than its factorization.

1319988089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 1119744, while the sum is 56.

The square root of 1319988089 is about 36331.6403290575. The cubic root of 1319988089 is about 1096.9580110053.

The spelling of 1319988089 in words is "one billion, three hundred nineteen million, nine hundred eighty-eight thousand, eighty-nine".