498809149 has 2 divisors, whose sum is σ = 498809150. Its totient is φ = 498809148.

The previous prime is 498809123. The next prime is 498809153. The reversal of 498809149 is 941908894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371525625 + 127283524 = 19275^2 + 11282^2 .

It is a cyclic number.

It is not a de Polignac number, because 498809149 - 2¹⁷ = 498678077 is a prime.

It is a super-2 number, since 2×498809149² = 497621134252208402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 498809096 and 498809105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498809249) 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, 249404574 + 249404575.

It is an arithmetic number, because the mean of its divisors is an integer number (249404575).

Almost surely, 2^498809149 is an apocalyptic number.

It is an amenable number.

498809149 is a deficient number, since it is larger than the sum of its proper divisors (1).

498809149 is an equidigital number, since it uses as much as digits as its factorization.

498809149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 498809149 is about 22334.0356630861. The cubic root of 498809149 is about 793.0699056922.

The spelling of 498809149 in words is "four hundred ninety-eight million, eight hundred nine thousand, one hundred forty-nine".