1375320717 has 24 divisors (see below), whose sum is σ = 2023024640. Its totient is φ = 900188640.

The previous prime is 1375320697. The next prime is 1375320731. The reversal of 1375320717 is 7170235731.

It is not a de Polignac number, because 1375320717 - 2⁷ = 1375320589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375320767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123348 + ... + 134034.

Almost surely, 2^1375320717 is an apocalyptic number.

It is an amenable number.

1375320717 is a deficient number, since it is larger than the sum of its proper divisors (647703923).

1375320717 is a wasteful number, since it uses less digits than its factorization.

1375320717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10953 (or 10950 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 1375320717 is about 37085.3167304797. The cubic root of 1375320717 is about 1112.0764953178.

The spelling of 1375320717 in words is "one billion, three hundred seventy-five million, three hundred twenty thousand, seven hundred seventeen".