145123535320429 has 2 divisors, whose sum is σ = 145123535320430. Its totient is φ = 145123535320428.

The previous prime is 145123535320349. The next prime is 145123535320469. The reversal of 145123535320429 is 924023535321541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98174864672329 + 46948670648100 = 9908323^2 + 6851910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145123535320429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145123535320469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72561767660214 + 72561767660215.

It is an arithmetic number, because the mean of its divisors is an integer number (72561767660215).

Almost surely, 2^{145123535320429} is an apocalyptic number.

It is an amenable number.

145123535320429 is a deficient number, since it is larger than the sum of its proper divisors (1).

145123535320429 is an equidigital number, since it uses as much as digits as its factorization.

145123535320429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 145123535320429 in words is "one hundred forty-five trillion, one hundred twenty-three billion, five hundred thirty-five million, three hundred twenty thousand, four hundred twenty-nine".