1319552945 has 8 divisors (see below), whose sum is σ = 1666803840. Its totient is φ = 1000082160.

The previous prime is 1319552921. The next prime is 1319552947. The reversal of 1319552945 is 5492559131.

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

It is not a de Polignac number, because 1319552945 - 2¹² = 1319548849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1319552896 and 1319552905.

It is not an unprimeable number, because it can be changed into a prime (1319552947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6944921 + ... + 6945110.

It is an arithmetic number, because the mean of its divisors is an integer number (208350480).

Almost surely, 2^1319552945 is an apocalyptic number.

It is an amenable number.

1319552945 is a deficient number, since it is larger than the sum of its proper divisors (347250895).

1319552945 is a wasteful number, since it uses less digits than its factorization.

1319552945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890055.

The product of its digits is 243000, while the sum is 44.

The square root of 1319552945 is about 36325.6513362114. The cubic root of 1319552945 is about 1096.8374576047.

The spelling of 1319552945 in words is "one billion, three hundred nineteen million, five hundred fifty-two thousand, nine hundred forty-five".