494921153 has 16 divisors (see below), whose sum is σ = 548467200. Its totient is φ = 444212736.

The previous prime is 494921143. The next prime is 494921171. The reversal of 494921153 is 351129494.

It is a cyclic number.

It is not a de Polignac number, because 494921153 - 2¹⁶ = 494855617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494921123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141773 + ... + 145221.

It is an arithmetic number, because the mean of its divisors is an integer number (34279200).

Almost surely, 2^494921153 is an apocalyptic number.

It is an amenable number.

494921153 is a deficient number, since it is larger than the sum of its proper divisors (53546047).

494921153 is a wasteful number, since it uses less digits than its factorization.

494921153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856.

The product of its digits is 38880, while the sum is 38.

The square root of 494921153 is about 22246.8234361672. The cubic root of 494921153 is about 791.0039860367.

The spelling of 494921153 in words is "four hundred ninety-four million, nine hundred twenty-one thousand, one hundred fifty-three".