499803161 has 16 divisors (see below), whose sum is σ = 601509888. Its totient is φ = 409180800.

The previous prime is 499803131. The next prime is 499803163. The reversal of 499803161 is 161308994.

It is a cyclic number.

It is not a de Polignac number, because 499803161 - 2⁶ = 499803097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499803163) 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, 36761 + ... + 48486.

It is an arithmetic number, because the mean of its divisors is an integer number (37594368).

Almost surely, 2^499803161 is an apocalyptic number.

499803161 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

499803161 is a deficient number, since it is larger than the sum of its proper divisors (101706727).

499803161 is a wasteful number, since it uses less digits than its factorization.

499803161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85312.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 499803161 is about 22356.2778878775. The cubic root of 499803161 is about 793.5963581682.

It can be divided in two parts, 49 and 9803161, that multiplied together give a square (480354889 = 21917²).

The spelling of 499803161 in words is "four hundred ninety-nine million, eight hundred three thousand, one hundred sixty-one".