149498497 has 2 divisors, whose sum is σ = 149498498. Its totient is φ = 149498496.

The previous prime is 149498477. The next prime is 149498543. The reversal of 149498497 is 794894941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110859841 + 38638656 = 10529^2 + 6216^2 .

It is a cyclic number.

It is not a de Polignac number, because 149498497 - 2⁷ = 149498369 is a prime.

It is not a weakly prime, because it can be changed into another prime (149498407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74749248 + 74749249.

It is an arithmetic number, because the mean of its divisors is an integer number (74749249).

Almost surely, 2^149498497 is an apocalyptic number.

It is an amenable number.

149498497 is a deficient number, since it is larger than the sum of its proper divisors (1).

149498497 is an equidigital number, since it uses as much as digits as its factorization.

149498497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 149498497 is about 12226.9577982424. The cubic root of 149498497 is about 530.7364829396.

The spelling of 149498497 in words is "one hundred forty-nine million, four hundred ninety-eight thousand, four hundred ninety-seven".