1375443164 has 12 divisors (see below), whose sum is σ = 2447823000. Its totient is φ = 676065168.

The previous prime is 1375443161. The next prime is 1375443239. The reversal of 1375443164 is 4613445731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375443161) 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, 2913839 + ... + 2914310.

It is an arithmetic number, because the mean of its divisors is an integer number (203985250).

Almost surely, 2^1375443164 is an apocalyptic number.

It is an amenable number.

1375443164 is a deficient number, since it is larger than the sum of its proper divisors (1072379836).

1375443164 is a wasteful number, since it uses less digits than its factorization.

1375443164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828212 (or 5828210 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 1375443164 is about 37086.9675762255. The cubic root of 1375443164 is about 1112.1094976539.

Adding to 1375443164 its reverse (4613445731), we get a palindrome (5988888895).

The spelling of 1375443164 in words is "one billion, three hundred seventy-five million, four hundred forty-three thousand, one hundred sixty-four".