1375807 has 2 divisors, whose sum is σ = 1375808. Its totient is φ = 1375806.

The previous prime is 1375799. The next prime is 1375813. The reversal of 1375807 is 7085731.

It is a strong prime.

It is an emirp because it is prime and its reverse (7085731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375807 - 2³ = 1375799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687903 + 687904.

It is an arithmetic number, because the mean of its divisors is an integer number (687904).

2^1375807 is an apocalyptic number.

1375807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375807 is an equidigital number, since it uses as much as digits as its factorization.

1375807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1375807 is about 1172.9479954371. The cubic root of 1375807 is about 111.2207548428.

The spelling of 1375807 in words is "one million, three hundred seventy-five thousand, eight hundred seven".