493953149 has 2 divisors, whose sum is σ = 493953150. Its totient is φ = 493953148.

The previous prime is 493953091. The next prime is 493953151. The reversal of 493953149 is 941359394.

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., 471324100 + 22629049 = 21710^2 + 4757^2 .

It is a cyclic number.

It is not a de Polignac number, because 493953149 - 2¹⁶ = 493887613 is a prime.

Together with 493953151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493955149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246976574 + 246976575.

It is an arithmetic number, because the mean of its divisors is an integer number (246976575).

Almost surely, 2^493953149 is an apocalyptic number.

It is an amenable number.

493953149 is a deficient number, since it is larger than the sum of its proper divisors (1).

493953149 is an equidigital number, since it uses as much as digits as its factorization.

493953149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 47.

The square root of 493953149 is about 22225.0567828296. The cubic root of 493953149 is about 790.4879477666.

The spelling of 493953149 in words is "four hundred ninety-three million, nine hundred fifty-three thousand, one hundred forty-nine".