145118 has 4 divisors (see below), whose sum is σ = 217680. Its totient is φ = 72558.

The previous prime is 145109. The next prime is 145121. The reversal of 145118 is 811541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 811541 = 73 ⋅11117.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 145118.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36278 + ... + 36281.

It is an arithmetic number, because the mean of its divisors is an integer number (54420).

2¹⁴⁵¹¹⁸ is an apocalyptic number.

145118 is a deficient number, since it is larger than the sum of its proper divisors (72562).

145118 is an equidigital number, since it uses as much as digits as its factorization.

145118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72561.

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

The square root of 145118 is about 380.9435653742. The cubic root of 145118 is about 52.5501259728.

Adding to 145118 its reverse (811541), we get a palindrome (956659).

The spelling of 145118 in words is "one hundred forty-five thousand, one hundred eighteen".