1319605089 has 16 divisors (see below), whose sum is σ = 1924378560. Its totient is φ = 797696960.

The previous prime is 1319605087. The next prime is 1319605123. The reversal of 1319605089 is 9805069131.

It is a cyclic number.

It is not a de Polignac number, because 1319605089 - 2¹ = 1319605087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1319605089.

It is not an unprimeable number, because it can be changed into a prime (1319605087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38562 + ... + 64235.

It is an arithmetic number, because the mean of its divisors is an integer number (120273660).

Almost surely, 2^1319605089 is an apocalyptic number.

It is an amenable number.

1319605089 is a deficient number, since it is larger than the sum of its proper divisors (604773471).

1319605089 is a wasteful number, since it uses less digits than its factorization.

1319605089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103200.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1319605089 is about 36326.3690588531. The cubic root of 1319605089 is about 1096.8519051087.

The spelling of 1319605089 in words is "one billion, three hundred nineteen million, six hundred five thousand, eighty-nine".