918145 has 8 divisors (see below), whose sum is σ = 1125504. Its totient is φ = 718704.

The previous prime is 918143. The next prime is 918149. The reversal of 918145 is 541819.

It is a happy number.

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 918145 - 2¹ = 918143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (140688).

2⁹¹⁸¹⁴⁵ is an apocalyptic number.

It is an amenable number.

918145 is a deficient number, since it is larger than the sum of its proper divisors (207359).

918145 is a wasteful number, since it uses less digits than its factorization.

918145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959.

The product of its digits is 1440, while the sum is 28.

The square root of 918145 is about 958.1988311410. The cubic root of 918145 is about 97.1934708028.

It can be divided in two parts, 91814 and 5, that added together give a palindrome (91819).

The spelling of 918145 in words is "nine hundred eighteen thousand, one hundred forty-five".