493181522 has 4 divisors (see below), whose sum is σ = 739772286. Its totient is φ = 246590760.

The previous prime is 493181489. The next prime is 493181527. The reversal of 493181522 is 225181394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225181394 = 2 ⋅112590697.

It can be written as a sum of positive squares in only one way, i.e., 270306481 + 222875041 = 16441^2 + 14929^2 .

It is not an unprimeable number, because it can be changed into a prime (493181527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123295379 + ... + 123295382.

Almost surely, 2^493181522 is an apocalyptic number.

493181522 is a deficient number, since it is larger than the sum of its proper divisors (246590764).

493181522 is a wasteful number, since it uses less digits than its factorization.

493181522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246590763.

The product of its digits is 17280, while the sum is 35.

The square root of 493181522 is about 22207.6906048333. The cubic root of 493181522 is about 790.0761140145.

The spelling of 493181522 in words is "four hundred ninety-three million, one hundred eighty-one thousand, five hundred twenty-two".