499605145 has 16 divisors (see below), whose sum is σ = 666473472. Its totient is φ = 357036480.

The previous prime is 499605121. The next prime is 499605151. The reversal of 499605145 is 541506994.

It is not a de Polignac number, because 499605145 - 2²¹ = 497507993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121957 + ... + 125986.

It is an arithmetic number, because the mean of its divisors is an integer number (41654592).

Almost surely, 2^499605145 is an apocalyptic number.

It is an amenable number.

499605145 is a deficient number, since it is larger than the sum of its proper divisors (166868327).

499605145 is a wasteful number, since it uses less digits than its factorization.

499605145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247992.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 499605145 is about 22351.8488049647. The cubic root of 499605145 is about 793.4915398808.

The spelling of 499605145 in words is "four hundred ninety-nine million, six hundred five thousand, one hundred forty-five".