1985422903 has 2 divisors, whose sum is σ = 1985422904. Its totient is φ = 1985422902.

The previous prime is 1985422891. The next prime is 1985422919. The reversal of 1985422903 is 3092245891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1985422903 - 2²⁹ = 1448551991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1985422903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1985422963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992711451 + 992711452.

It is an arithmetic number, because the mean of its divisors is an integer number (992711452).

Almost surely, 2^1985422903 is an apocalyptic number.

1985422903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1985422903 is an equidigital number, since it uses as much as digits as its factorization.

1985422903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1985422903 is about 44558.0845975228. The cubic root of 1985422903 is about 1256.8525843300.

The spelling of 1985422903 in words is "one billion, nine hundred eighty-five million, four hundred twenty-two thousand, nine hundred three".