485138803 has 2 divisors, whose sum is σ = 485138804. Its totient is φ = 485138802.

The previous prime is 485138777. The next prime is 485138821. The reversal of 485138803 is 308831584.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485138803 is a prime.

It is not a weakly prime, because it can be changed into another prime (485138833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242569401 + 242569402.

It is an arithmetic number, because the mean of its divisors is an integer number (242569402).

Almost surely, 2^485138803 is an apocalyptic number.

485138803 is a deficient number, since it is larger than the sum of its proper divisors (1).

485138803 is an equidigital number, since it uses as much as digits as its factorization.

485138803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 485138803 is about 22025.8666798835. The cubic root of 485138803 is about 785.7577456150.

The spelling of 485138803 in words is "four hundred eighty-five million, one hundred thirty-eight thousand, eight hundred three".