499221109 has 8 divisors (see below), whose sum is σ = 516936960. Its totient is φ = 481538736.

The previous prime is 499221103. The next prime is 499221139. The reversal of 499221109 is 901122994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 499221109 - 2⁹ = 499220597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24184 + ... + 39790.

It is an arithmetic number, because the mean of its divisors is an integer number (64617120).

Almost surely, 2^499221109 is an apocalyptic number.

It is an amenable number.

499221109 is a deficient number, since it is larger than the sum of its proper divisors (17715851).

499221109 is a wasteful number, since it uses less digits than its factorization.

499221109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16739.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 499221109 is about 22343.2564546890. The cubic root of 499221109 is about 793.2881743277.

The spelling of 499221109 in words is "four hundred ninety-nine million, two hundred twenty-one thousand, one hundred nine".