494505145 has 4 divisors (see below), whose sum is σ = 593406180. Its totient is φ = 395604112.

The previous prime is 494505133. The next prime is 494505169. The reversal of 494505145 is 541505494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101989801 + 392515344 = 10099^2 + 19812^2 .

It is a cyclic number.

It is not a de Polignac number, because 494505145 - 2⁷ = 494505017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49450510 + ... + 49450519.

It is an arithmetic number, because the mean of its divisors is an integer number (148351545).

Almost surely, 2^494505145 is an apocalyptic number.

It is an amenable number.

494505145 is a deficient number, since it is larger than the sum of its proper divisors (98901035).

494505145 is an equidigital number, since it uses as much as digits as its factorization.

494505145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98901034.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 494505145 is about 22237.4716413535. The cubic root of 494505145 is about 790.7822966989.

The spelling of 494505145 in words is "four hundred ninety-four million, five hundred five thousand, one hundred forty-five".