499545481 has 2 divisors, whose sum is σ = 499545482. Its totient is φ = 499545480.

The previous prime is 499545467. The next prime is 499545509. The reversal of 499545481 is 184545994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285069456 + 214476025 = 16884^2 + 14645^2 .

It is a cyclic number.

It is not a de Polignac number, because 499545481 - 2¹³ = 499537289 is a prime.

It is a super-2 number, since 2×499545481² = 499091375175042722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (499545461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249772740 + 249772741.

It is an arithmetic number, because the mean of its divisors is an integer number (249772741).

Almost surely, 2^499545481 is an apocalyptic number.

It is an amenable number.

499545481 is a deficient number, since it is larger than the sum of its proper divisors (1).

499545481 is an equidigital number, since it uses as much as digits as its factorization.

499545481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The square root of 499545481 is about 22350.5141104181. The cubic root of 499545481 is about 793.4599517594.

The spelling of 499545481 in words is "four hundred ninety-nine million, five hundred forty-five thousand, four hundred eighty-one".