145595017 has 4 divisors (see below), whose sum is σ = 146334276. Its totient is φ = 144855760.

The previous prime is 145594997. The next prime is 145595029. The reversal of 145595017 is 710595541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710595541 = 743 ⋅956387.

It can be written as a sum of positive squares in 2 ways, for example, as 85082176 + 60512841 = 9224^2 + 7779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145595017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145595077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369334 + ... + 369727.

It is an arithmetic number, because the mean of its divisors is an integer number (36583569).

Almost surely, 2^145595017 is an apocalyptic number.

It is an amenable number.

145595017 is a deficient number, since it is larger than the sum of its proper divisors (739259).

145595017 is an equidigital number, since it uses as much as digits as its factorization.

145595017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739258.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 145595017 is about 12066.2760203801. The cubic root of 145595017 is about 526.0764212577.

The spelling of 145595017 in words is "one hundred forty-five million, five hundred ninety-five thousand, seventeen".