1375397224 has 8 divisors (see below), whose sum is σ = 2578869810. Its totient is φ = 687698608.

The previous prime is 1375397159. The next prime is 1375397227. The reversal of 1375397224 is 4227935731.

It can be written as a sum of positive squares in only one way, i.e., 1318997124 + 56400100 = 36318^2 + 7510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1375397227) 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 as a sum of consecutive naturals, namely, 85962319 + ... + 85962334.

Almost surely, 2^1375397224 is an apocalyptic number.

It is an amenable number.

1375397224 is a deficient number, since it is larger than the sum of its proper divisors (1203472586).

1375397224 is a wasteful number, since it uses less digits than its factorization.

1375397224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171924659 (or 171924655 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 1375397224 is about 37086.3482160215. The cubic root of 1375397224 is about 1112.0971159769.

The spelling of 1375397224 in words is "one billion, three hundred seventy-five million, three hundred ninety-seven thousand, two hundred twenty-four".