1319489845 has 8 divisors (see below), whose sum is σ = 1583972280. Its totient is φ = 1055202240.

The previous prime is 1319489807. The next prime is 1319489851. The reversal of 1319489845 is 5489849131.

It can be written as a sum of positive squares in 4 ways, for example, as 22193521 + 1297296324 = 4711^2 + 36018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1319489845 - 2¹⁷ = 1319358773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1319489792 and 1319489801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33366 + ... + 61255.

It is an arithmetic number, because the mean of its divisors is an integer number (197996535).

Almost surely, 2^1319489845 is an apocalyptic number.

It is an amenable number.

1319489845 is a deficient number, since it is larger than the sum of its proper divisors (264482435).

1319489845 is an equidigital number, since it uses as much as digits as its factorization.

1319489845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97415.

The product of its digits is 1244160, while the sum is 52.

The square root of 1319489845 is about 36324.7827935695. The cubic root of 1319489845 is about 1096.8199740201.

The spelling of 1319489845 in words is "one billion, three hundred nineteen million, four hundred eighty-nine thousand, eight hundred forty-five".