1018116459 has 40 divisors (see below), whose sum is σ = 1599000480. Its totient is φ = 644333184.

The previous prime is 1018116409. The next prime is 1018116467. The reversal of 1018116459 is 9546118101.

It is a happy number.

1018116459 is a `hidden beast` number, since 1 + 0 + 1 + 8 + 1 + 1 + 645 + 9 = 666.

It is not a de Polignac number, because 1018116459 - 2²¹ = 1016019307 is a prime.

It is a super-2 number, since 2×1018116459² = 2073122248173397362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1018116409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 253237 + ... + 257225.

It is an arithmetic number, because the mean of its divisors is an integer number (39975012).

Almost surely, 2^1018116459 is an apocalyptic number.

1018116459 is a deficient number, since it is larger than the sum of its proper divisors (580884021).

1018116459 is a wasteful number, since it uses less digits than its factorization.

1018116459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1018116459 is about 31907.9372413824. The cubic root of 1018116459 is about 1006.0027149817.

The spelling of 1018116459 in words is "one billion, eighteen million, one hundred sixteen thousand, four hundred fifty-nine".