499556137 has 2 divisors, whose sum is σ = 499556138. Its totient is φ = 499556136.

The previous prime is 499556089. The next prime is 499556149. The reversal of 499556137 is 731655994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375545641 + 124010496 = 19379^2 + 11136^2 .

It is a cyclic number.

It is not a de Polignac number, because 499556137 - 2¹⁹ = 499031849 is a prime.

It is not a weakly prime, because it can be changed into another prime (499553137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249778068 + 249778069.

It is an arithmetic number, because the mean of its divisors is an integer number (249778069).

Almost surely, 2^499556137 is an apocalyptic number.

It is an amenable number.

499556137 is a deficient number, since it is larger than the sum of its proper divisors (1).

499556137 is an equidigital number, since it uses as much as digits as its factorization.

499556137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 49.

The square root of 499556137 is about 22350.7524929252. The cubic root of 499556137 is about 793.4655935875.

The spelling of 499556137 in words is "four hundred ninety-nine million, five hundred fifty-six thousand, one hundred thirty-seven".