1310780089 has 4 divisors (see below), whose sum is σ = 1310932480. Its totient is φ = 1310627700.

The previous prime is 1310780071. The next prime is 1310780111. The reversal of 1310780089 is 9800870131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1310780089 - 2²¹ = 1308682937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310780489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62469 + ... + 80770.

It is an arithmetic number, because the mean of its divisors is an integer number (327733120).

Almost surely, 2^1310780089 is an apocalyptic number.

It is an amenable number.

1310780089 is a deficient number, since it is larger than the sum of its proper divisors (152391).

1310780089 is an equidigital number, since it uses as much as digits as its factorization.

1310780089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152390.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1310780089 is about 36204.6970571499. The cubic root of 1310780089 is about 1094.4013293715.

The spelling of 1310780089 in words is "one billion, three hundred ten million, seven hundred eighty thousand, eighty-nine".