145029788489 has 2 divisors, whose sum is σ = 145029788490. Its totient is φ = 145029788488.

The previous prime is 145029788461. The next prime is 145029788509. The reversal of 145029788489 is 984887920541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113134686025 + 31895102464 = 336355^2 + 178592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145029788489 is a prime.

It is not a weakly prime, because it can be changed into another prime (145029788429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72514894244 + 72514894245.

It is an arithmetic number, because the mean of its divisors is an integer number (72514894245).

Almost surely, 2^145029788489 is an apocalyptic number.

It is an amenable number.

145029788489 is a deficient number, since it is larger than the sum of its proper divisors (1).

145029788489 is an equidigital number, since it uses as much as digits as its factorization.

145029788489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46448640, while the sum is 65.

The spelling of 145029788489 in words is "one hundred forty-five billion, twenty-nine million, seven hundred eighty-eight thousand, four hundred eighty-nine".