1379538145 has 8 divisors (see below), whose sum is σ = 1660360104. Its totient is φ = 1100354304.

The previous prime is 1379538109. The next prime is 1379538163. The reversal of 1379538145 is 5418359731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89794576 + 1289743569 = 9476^2 + 35913^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1379538145 - 2¹⁵ = 1379505377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1379538095 and 1379538104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407674 + ... + 411043.

It is an arithmetic number, because the mean of its divisors is an integer number (207545013).

Almost surely, 2^1379538145 is an apocalyptic number.

It is an amenable number.

1379538145 is a deficient number, since it is larger than the sum of its proper divisors (280821959).

1379538145 is an equidigital number, since it uses as much as digits as its factorization.

1379538145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819059.

The product of its digits is 453600, while the sum is 46.

The square root of 1379538145 is about 37142.1343624730. The cubic root of 1379538145 is about 1113.2120647812.

The spelling of 1379538145 in words is "one billion, three hundred seventy-nine million, five hundred thirty-eight thousand, one hundred forty-five".