1319672017 has 4 divisors (see below), whose sum is σ = 1319794740. Its totient is φ = 1319549296.

The previous prime is 1319672009. The next prime is 1319672033. The reversal of 1319672017 is 7102769131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 421111441 + 898560576 = 20521^2 + 29976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1319672017 - 2³ = 1319672009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1319652017) 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, 43498 + ... + 67315.

It is an arithmetic number, because the mean of its divisors is an integer number (329948685).

Almost surely, 2^1319672017 is an apocalyptic number.

It is an amenable number.

1319672017 is a deficient number, since it is larger than the sum of its proper divisors (122723).

1319672017 is a wasteful number, since it uses less digits than its factorization.

1319672017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122722.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 1319672017 is about 36327.2902512698. The cubic root of 1319672017 is about 1096.8704482480.

The spelling of 1319672017 in words is "one billion, three hundred nineteen million, six hundred seventy-two thousand, seventeen".