494153138 has 8 divisors (see below), whose sum is σ = 744743280. Its totient is φ = 245905380.

The previous prime is 494153129. The next prime is 494153173. The reversal of 494153138 is 831351494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585068 + ... + 585911.

It is an arithmetic number, because the mean of its divisors is an integer number (93092910).

Almost surely, 2^494153138 is an apocalyptic number.

494153138 is a deficient number, since it is larger than the sum of its proper divisors (250590142).

494153138 is a wasteful number, since it uses less digits than its factorization.

494153138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171192.

The product of its digits is 51840, while the sum is 38.

The square root of 494153138 is about 22229.5555061274. Note that the first 4 decimals coincide. The cubic root of 494153138 is about 790.5946161580.

The spelling of 494153138 in words is "four hundred ninety-four million, one hundred fifty-three thousand, one hundred thirty-eight".