145433813 has 6 divisors (see below), whose sum is σ = 169178166. Its totient is φ = 124657512.

The previous prime is 145433801. The next prime is 145433851. The reversal of 145433813 is 318334541.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 7300804 = 11753^2 + 2702^2 .

It is not a de Polignac number, because 145433813 - 2¹⁰ = 145432789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145433813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145433713) 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 5 ways as a sum of consecutive naturals, for example, 1483970 + ... + 1484067.

It is an arithmetic number, because the mean of its divisors is an integer number (28196361).

Almost surely, 2^145433813 is an apocalyptic number.

It is an amenable number.

145433813 is a deficient number, since it is larger than the sum of its proper divisors (23744353).

145433813 is an equidigital number, since it uses as much as digits as its factorization.

145433813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968051 (or 2968044 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 145433813 is about 12059.5942303214. The cubic root of 145433813 is about 525.8821908424.

The spelling of 145433813 in words is "one hundred forty-five million, four hundred thirty-three thousand, eight hundred thirteen".