145216033 has 2 divisors, whose sum is σ = 145216034. Its totient is φ = 145216032.

The previous prime is 145216007. The next prime is 145216063. The reversal of 145216033 is 330612541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132987024 + 12229009 = 11532^2 + 3497^2 .

It is a cyclic number.

It is not a de Polignac number, because 145216033 - 2¹³ = 145207841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145215989 and 145216007.

It is not a weakly prime, because it can be changed into another prime (145216003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72608016 + 72608017.

It is an arithmetic number, because the mean of its divisors is an integer number (72608017).

Almost surely, 2^145216033 is an apocalyptic number.

It is an amenable number.

145216033 is a deficient number, since it is larger than the sum of its proper divisors (1).

145216033 is an equidigital number, since it uses as much as digits as its factorization.

145216033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 145216033 is about 12050.5615221864. The cubic root of 145216033 is about 525.6195654489.

Adding to 145216033 its reverse (330612541), we get a palindrome (475828574).

The spelling of 145216033 in words is "one hundred forty-five million, two hundred sixteen thousand, thirty-three".