145105133 has 2 divisors, whose sum is σ = 145105134. Its totient is φ = 145105132.

The previous prime is 145105127. The next prime is 145105151. The reversal of 145105133 is 331501541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98346889 + 46758244 = 9917^2 + 6838^2 .

It is a cyclic number.

It is not a de Polignac number, because 145105133 - 2⁴ = 145105117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145105099 and 145105108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145105633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72552566 + 72552567.

It is an arithmetic number, because the mean of its divisors is an integer number (72552567).

Almost surely, 2^145105133 is an apocalyptic number.

It is an amenable number.

145105133 is a deficient number, since it is larger than the sum of its proper divisors (1).

145105133 is an equidigital number, since it uses as much as digits as its factorization.

145105133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 145105133 is about 12045.9591980049. The cubic root of 145105133 is about 525.4857279433.

Adding to 145105133 its reverse (331501541), we get a palindrome (476606674).

The spelling of 145105133 in words is "one hundred forty-five million, one hundred five thousand, one hundred thirty-three".