499204161 has 16 divisors (see below), whose sum is σ = 740476800. Its totient is φ = 332391024.

The previous prime is 499204117. The next prime is 499204163. The reversal of 499204161 is 161402994.

It is a happy number.

499204161 is a `hidden beast` number, since 499 + 2 + 0 + 4 + 161 = 666.

It is not a de Polignac number, because 499204161 - 2¹⁹ = 498679873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499204163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11635 + ... + 33671.

It is an arithmetic number, because the mean of its divisors is an integer number (46279800).

Almost surely, 2^499204161 is an apocalyptic number.

It is an amenable number.

499204161 is a deficient number, since it is larger than the sum of its proper divisors (241272639).

499204161 is a wasteful number, since it uses less digits than its factorization.

499204161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22885 (or 22879 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 499204161 is about 22342.8771871485. The cubic root of 499204161 is about 793.2791971431.

The spelling of 499204161 in words is "four hundred ninety-nine million, two hundred four thousand, one hundred sixty-one".