493149253 has 4 divisors (see below), whose sum is σ = 493946560. Its totient is φ = 492351948.

The previous prime is 493149211. The next prime is 493149257. The reversal of 493149253 is 352941394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493149253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493149257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397725 + ... + 398962.

It is an arithmetic number, because the mean of its divisors is an integer number (123486640).

Almost surely, 2^493149253 is an apocalyptic number.

It is an amenable number.

493149253 is a deficient number, since it is larger than the sum of its proper divisors (797307).

493149253 is an equidigital number, since it uses as much as digits as its factorization.

493149253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797306.

The product of its digits is 116640, while the sum is 40.

The square root of 493149253 is about 22206.9640653557. The cubic root of 493149253 is about 790.0588820076.

The spelling of 493149253 in words is "four hundred ninety-three million, one hundred forty-nine thousand, two hundred fifty-three".