145533313 has 16 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 135273600.

The previous prime is 145533301. The next prime is 145533317. The reversal of 145533313 is 313335541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145533313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145533317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84303 + ... + 86011.

It is an arithmetic number, because the mean of its divisors is an integer number (9767520).

Almost surely, 2^145533313 is an apocalyptic number.

It is an amenable number.

145533313 is a deficient number, since it is larger than the sum of its proper divisors (10747007).

145533313 is a wasteful number, since it uses less digits than its factorization.

145533313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

The product of its digits is 8100, while the sum is 28.

The square root of 145533313 is about 12063.7188710613. The cubic root of 145533313 is about 526.0020926922.

Adding to 145533313 its reverse (313335541), we get a palindrome (458868854).

The spelling of 145533313 in words is "one hundred forty-five million, five hundred thirty-three thousand, three hundred thirteen".