818499051 has 24 divisors (see below), whose sum is σ = 1264240224. Its totient is φ = 508473600.

The previous prime is 818499049. The next prime is 818499053. The reversal of 818499051 is 150994818.

It is an interprime number because it is at equal distance from previous prime (818499049) and next prime (818499053).

It is not a de Polignac number, because 818499051 - 2¹ = 818499049 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 818498988 and 818499006.

It is not an unprimeable number, because it can be changed into a prime (818499053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11031 + ... + 41936.

It is an arithmetic number, because the mean of its divisors is an integer number (52676676).

Almost surely, 2^818499051 is an apocalyptic number.

818499051 is a deficient number, since it is larger than the sum of its proper divisors (445741173).

818499051 is a wasteful number, since it uses less digits than its factorization.

818499051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53091 (or 53088 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 818499051 is about 28609.4224163998. The cubic root of 818499051 is about 935.4187267275.

The spelling of 818499051 in words is "eight hundred eighteen million, four hundred ninety-nine thousand, fifty-one".