145000117 has 2 divisors, whose sum is σ = 145000118. Its totient is φ = 145000116.

The previous prime is 145000099. The next prime is 145000169. The reversal of 145000117 is 711000541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119990116 + 25010001 = 10954^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 145000117 - 2¹¹ = 144998069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145000094 and 145000103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145000187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72500058 + 72500059.

It is an arithmetic number, because the mean of its divisors is an integer number (72500059).

Almost surely, 2^145000117 is an apocalyptic number.

It is an amenable number.

145000117 is a deficient number, since it is larger than the sum of its proper divisors (1).

145000117 is an equidigital number, since it uses as much as digits as its factorization.

145000117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 145000117 is about 12041.5994369519. The cubic root of 145000117 is about 525.3589285527.

Adding to 145000117 its reverse (711000541), we get a palindrome (856000658).

The spelling of 145000117 in words is "one hundred forty-five million, one hundred seventeen", and thus it is an aban number.