145340017 has 2 divisors, whose sum is σ = 145340018. Its totient is φ = 145340016.

The previous prime is 145340009. The next prime is 145340023. The reversal of 145340017 is 710043541.

145340017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144865296 + 474721 = 12036^2 + 689^2 .

It is an emirp because it is prime and its reverse (710043541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145340017 - 2³ = 145340009 is a prime.

It is a super-2 number, since 2×145340017² = 42247441083120578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145339973 and 145340000.

It is not a weakly prime, because it can be changed into another prime (145340077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72670008 + 72670009.

It is an arithmetic number, because the mean of its divisors is an integer number (72670009).

Almost surely, 2^145340017 is an apocalyptic number.

It is an amenable number.

145340017 is a deficient number, since it is larger than the sum of its proper divisors (1).

145340017 is an equidigital number, since it uses as much as digits as its factorization.

145340017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 145340017 is about 12055.7047492048. The cubic root of 145340017 is about 525.7691124765.

Adding to 145340017 its reverse (710043541), we get a palindrome (855383558).

The spelling of 145340017 in words is "one hundred forty-five million, three hundred forty thousand, seventeen".