145678305 has 16 divisors (see below), whose sum is σ = 233601984. Its totient is φ = 77522880.

The previous prime is 145678303. The next prime is 145678327. The reversal of 145678305 is 503876541.

It is not a de Polignac number, because 145678305 - 2¹ = 145678303 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (145678303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3619 + ... + 17448.

It is an arithmetic number, because the mean of its divisors is an integer number (14600124).

Almost surely, 2^145678305 is an apocalyptic number.

145678305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145678305 is a deficient number, since it is larger than the sum of its proper divisors (87923679).

145678305 is a wasteful number, since it uses less digits than its factorization.

145678305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 145678305 is about 12069.7267988965. The cubic root of 145678305 is about 526.1767165873.

The spelling of 145678305 in words is "one hundred forty-five million, six hundred seventy-eight thousand, three hundred five".