485139451 has 2 divisors, whose sum is σ = 485139452. Its totient is φ = 485139450.

The previous prime is 485139443. The next prime is 485139467. The reversal of 485139451 is 154931584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 485139451 - 2³ = 485139443 is a prime.

It is not a weakly prime, because it can be changed into another prime (485139481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242569725 + 242569726.

It is an arithmetic number, because the mean of its divisors is an integer number (242569726).

Almost surely, 2^485139451 is an apocalyptic number.

485139451 is a deficient number, since it is larger than the sum of its proper divisors (1).

485139451 is an equidigital number, since it uses as much as digits as its factorization.

485139451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 485139451 is about 22025.8813898559. The cubic root of 485139451 is about 785.7580954604.

The spelling of 485139451 in words is "four hundred eighty-five million, one hundred thirty-nine thousand, four hundred fifty-one".