145121532929 has 2 divisors, whose sum is σ = 145121532930. Its totient is φ = 145121532928.

The previous prime is 145121532893. The next prime is 145121532967. The reversal of 145121532929 is 929235121541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84711266704 + 60410266225 = 291052^2 + 245785^2 .

It is a cyclic number.

It is not a de Polignac number, because 145121532929 - 2¹² = 145121528833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145121532929.

It is not a weakly prime, because it can be changed into another prime (145121532979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72560766464 + 72560766465.

It is an arithmetic number, because the mean of its divisors is an integer number (72560766465).

Almost surely, 2^145121532929 is an apocalyptic number.

It is an amenable number.

145121532929 is a deficient number, since it is larger than the sum of its proper divisors (1).

145121532929 is an equidigital number, since it uses as much as digits as its factorization.

145121532929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The spelling of 145121532929 in words is "one hundred forty-five billion, one hundred twenty-one million, five hundred thirty-two thousand, nine hundred twenty-nine".