145112317 has 8 divisors (see below), whose sum is σ = 171561600. Its totient is φ = 120092784.

The previous prime is 145112309. The next prime is 145112321. The reversal of 145112317 is 713211541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145112317 - 2³ = 145112309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145112291 and 145112300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145112327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357217 + ... + 357622.

It is an arithmetic number, because the mean of its divisors is an integer number (21445200).

Almost surely, 2^145112317 is an apocalyptic number.

It is an amenable number.

145112317 is a deficient number, since it is larger than the sum of its proper divisors (26449283).

145112317 is an equidigital number, since it uses as much as digits as its factorization.

145112317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714875.

The product of its digits is 840, while the sum is 25.

The square root of 145112317 is about 12046.2573855949. The cubic root of 145112317 is about 525.4943998790.

Adding to 145112317 its reverse (713211541), we get a palindrome (858323858).

The spelling of 145112317 in words is "one hundred forty-five million, one hundred twelve thousand, three hundred seventeen".