1018099 has 4 divisors (see below), whose sum is σ = 1020136. Its totient is φ = 1016064.

The previous prime is 1018097. The next prime is 1018109. The reversal of 1018099 is 9908101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1018099 - 2¹ = 1018097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307 + ... + 1459.

It is an arithmetic number, because the mean of its divisors is an integer number (255034).

2^1018099 is an apocalyptic number.

1018099 is a deficient number, since it is larger than the sum of its proper divisors (2037).

1018099 is an equidigital number, since it uses as much as digits as its factorization.

1018099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1018099 is about 1009.0089196831. The cubic root of 1018099 is about 100.5996964526.

Subtracting from 1018099 its product of nonzero digits (648), we obtain a triangular number (1017451 = T₁₄₂₆).

The spelling of 1018099 in words is "one million, eighteen thousand, ninety-nine".