1018145 has 8 divisors (see below), whose sum is σ = 1230504. Its totient is φ = 808704.

The previous prime is 1018123. The next prime is 1018177. The reversal of 1018145 is 5418101.

It can be written as a sum of positive squares in 4 ways, for example, as 305809 + 712336 = 553^2 + 844^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1018145 - 2⁸ = 1017889 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (153813).

2^1018145 is an apocalyptic number.

It is an amenable number.

1018145 is a deficient number, since it is larger than the sum of its proper divisors (212359).

1018145 is a wasteful number, since it uses less digits than its factorization.

1018145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1018145 is about 1009.0317140705. The cubic root of 1018145 is about 100.6012115365.

The spelling of 1018145 in words is "one million, eighteen thousand, one hundred forty-five".