145206329 has 2 divisors, whose sum is σ = 145206330. Its totient is φ = 145206328.

The previous prime is 145206319. The next prime is 145206343. The reversal of 145206329 is 923602541.

It is a happy number.

145206329 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., 124367104 + 20839225 = 11152^2 + 4565^2 .

It is an emirp because it is prime and its reverse (923602541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145206329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 145206295 and 145206304.

It is not a weakly prime, because it can be changed into another prime (145206319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72603164 + 72603165.

It is an arithmetic number, because the mean of its divisors is an integer number (72603165).

Almost surely, 2^145206329 is an apocalyptic number.

It is an amenable number.

145206329 is a deficient number, since it is larger than the sum of its proper divisors (1).

145206329 is an equidigital number, since it uses as much as digits as its factorization.

145206329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 145206329 is about 12050.1588786206. The cubic root of 145206329 is about 525.6078570864.

Adding to 145206329 its sum of digits (32), we get a triangular number (145206361 = T₁₇₀₄₁).

The spelling of 145206329 in words is "one hundred forty-five million, two hundred six thousand, three hundred twenty-nine".