1375803797 has 2 divisors, whose sum is σ = 1375803798. Its totient is φ = 1375803796.

The previous prime is 1375803769. The next prime is 1375803823. The reversal of 1375803797 is 7973085731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860014276 + 515789521 = 29326^2 + 22711^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375803797 - 2³⁰ = 302061973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375803197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687901898 + 687901899.

It is an arithmetic number, because the mean of its divisors is an integer number (687901899).

Almost surely, 2^1375803797 is an apocalyptic number.

It is an amenable number.

1375803797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375803797 is an equidigital number, since it uses as much as digits as its factorization.

1375803797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The square root of 1375803797 is about 37091.8292485016. The cubic root of 1375803797 is about 1112.2066853211.

The spelling of 1375803797 in words is "one billion, three hundred seventy-five million, eight hundred three thousand, seven hundred ninety-seven".