145315312 has 40 divisors (see below), whose sum is σ = 287394800. Its totient is φ = 71165952.

The previous prime is 145315279. The next prime is 145315319. The reversal of 145315312 is 213513541.

It is a happy number.

It is a super-2 number, since 2×145315312² = 42233079803314688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145315319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168739 + ... + 169597.

It is an arithmetic number, because the mean of its divisors is an integer number (7184870).

Almost surely, 2^145315312 is an apocalyptic number.

It is an amenable number.

145315312 is a deficient number, since it is larger than the sum of its proper divisors (142079488).

145315312 is a wasteful number, since it uses less digits than its factorization.

145315312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1067 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 145315312 is about 12054.6800870036. The cubic root of 145315312 is about 525.7393205852.

Adding to 145315312 its reverse (213513541), we get a palindrome (358828853).

The spelling of 145315312 in words is "one hundred forty-five million, three hundred fifteen thousand, three hundred twelve".