494687145 has 16 divisors (see below), whose sum is σ = 792835200. Its totient is φ = 263387904.

The previous prime is 494687129. The next prime is 494687183. The reversal of 494687145 is 541786494.

It is not a de Polignac number, because 494687145 - 2⁴ = 494687129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 494687094 and 494687103.

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 15 ways as a sum of consecutive naturals, for example, 18544 + ... + 36513.

It is an arithmetic number, because the mean of its divisors is an integer number (49552200).

Almost surely, 2^494687145 is an apocalyptic number.

It is an amenable number.

494687145 is a deficient number, since it is larger than the sum of its proper divisors (298148055).

494687145 is a wasteful number, since it uses less digits than its factorization.

494687145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55664.

The product of its digits is 967680, while the sum is 48.

The square root of 494687145 is about 22241.5634567357. The cubic root of 494687145 is about 790.8792992117.

The spelling of 494687145 in words is "four hundred ninety-four million, six hundred eighty-seven thousand, one hundred forty-five".