145412223317 has 16 divisors (see below), whose sum is σ = 153435824640. Its totient is φ = 137538390000.

The previous prime is 145412223241. The next prime is 145412223391. The reversal of 145412223317 is 713322214541.

It is a happy number.

It is not a de Polignac number, because 145412223317 - 2²⁴ = 145395446101 is a prime.

It is a super-2 number, since 2×145412223317² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145412223217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711842 + ... + 893052.

It is an arithmetic number, because the mean of its divisors is an integer number (9589739040).

Almost surely, 2^145412223317 is an apocalyptic number.

It is an amenable number.

145412223317 is a deficient number, since it is larger than the sum of its proper divisors (8023601323).

145412223317 is a wasteful number, since it uses less digits than its factorization.

145412223317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181624.

The product of its digits is 40320, while the sum is 35.

Adding to 145412223317 its reverse (713322214541), we get a palindrome (858734437858).

The spelling of 145412223317 in words is "one hundred forty-five billion, four hundred twelve million, two hundred twenty-three thousand, three hundred seventeen".