145335133 has 2 divisors, whose sum is σ = 145335134. Its totient is φ = 145335132.

The previous prime is 145335109. The next prime is 145335173. The reversal of 145335133 is 331533541.

145335133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117223929 + 28111204 = 10827^2 + 5302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145335133 is a prime.

It is a super-2 number, since 2×145335133² = 42244601768255378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145335173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72667566 + 72667567.

It is an arithmetic number, because the mean of its divisors is an integer number (72667567).

Almost surely, 2^145335133 is an apocalyptic number.

It is an amenable number.

145335133 is a deficient number, since it is larger than the sum of its proper divisors (1).

145335133 is an equidigital number, since it uses as much as digits as its factorization.

145335133 is an evil number, because the sum of its binary digits is even.

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

The square root of 145335133 is about 12055.5021877979. The cubic root of 145335133 is about 525.7632231026.

Adding to 145335133 its reverse (331533541), we get a palindrome (476868674).

The spelling of 145335133 in words is "one hundred forty-five million, three hundred thirty-five thousand, one hundred thirty-three".