145597159 has 4 divisors (see below), whose sum is σ = 145811016. Its totient is φ = 145383304.

The previous prime is 145597157. The next prime is 145597181. The reversal of 145597159 is 951795541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145597159 - 2¹ = 145597157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145597157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105904 + ... + 107269.

It is an arithmetic number, because the mean of its divisors is an integer number (36452754).

Almost surely, 2^145597159 is an apocalyptic number.

145597159 is a deficient number, since it is larger than the sum of its proper divisors (213857).

145597159 is an equidigital number, since it uses as much as digits as its factorization.

145597159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213856.

The product of its digits is 283500, while the sum is 46.

The square root of 145597159 is about 12066.3647798332. The cubic root of 145597159 is about 526.0790011312.

The spelling of 145597159 in words is "one hundred forty-five million, five hundred ninety-seven thousand, one hundred fifty-nine".