145111305 has 8 divisors (see below), whose sum is σ = 232178112. Its totient is φ = 77392688.

The previous prime is 145111289. The next prime is 145111327. The reversal of 145111305 is 503111541.

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 145111305 - 2⁴ = 145111289 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 4837029 + ... + 4837058.

It is an arithmetic number, because the mean of its divisors is an integer number (29022264).

Almost surely, 2^145111305 is an apocalyptic number.

145111305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145111305 is a deficient number, since it is larger than the sum of its proper divisors (87066807).

145111305 is an equidigital number, since it uses as much as digits as its factorization.

145111305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674095.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 145111305 is about 12046.2153807742. The cubic root of 145111305 is about 525.4931782929.

Adding to 145111305 its reverse (503111541), we get a palindrome (648222846).

The spelling of 145111305 in words is "one hundred forty-five million, one hundred eleven thousand, three hundred five".