1385825803 has 2 divisors, whose sum is σ = 1385825804. Its totient is φ = 1385825802.

The previous prime is 1385825759. The next prime is 1385825849. The reversal of 1385825803 is 3085285831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385825803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385825803.

It is not a weakly prime, because it can be changed into another prime (1385825303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692912901 + 692912902.

It is an arithmetic number, because the mean of its divisors is an integer number (692912902).

Almost surely, 2^1385825803 is an apocalyptic number.

1385825803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385825803 is an equidigital number, since it uses as much as digits as its factorization.

1385825803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 1385825803 is about 37226.6813320769. The cubic root of 1385825803 is about 1114.9007675099.

The spelling of 1385825803 in words is "one billion, three hundred eighty-five million, eight hundred twenty-five thousand, eight hundred three".