145530117 has 6 divisors (see below), whose sum is σ = 210210182. Its totient is φ = 97020072.

The previous prime is 145530113. The next prime is 145530137. The reversal of 145530117 is 711035541.

145530117 is a `hidden beast` number, since 14 + 5 + 530 + 117 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95531076 + 49999041 = 9774^2 + 7071^2 .

It is not a de Polignac number, because 145530117 - 2² = 145530113 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 (145530113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8084998 + ... + 8085015.

Almost surely, 2^145530117 is an apocalyptic number.

It is an amenable number.

145530117 is a deficient number, since it is larger than the sum of its proper divisors (64680065).

145530117 is a wasteful number, since it uses less digits than its factorization.

145530117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170019 (or 16170016 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 145530117 is about 12063.5864070350. The cubic root of 145530117 is about 525.9982422221.

Adding to 145530117 its reverse (711035541), we get a palindrome (856565658).

The spelling of 145530117 in words is "one hundred forty-five million, five hundred thirty thousand, one hundred seventeen".