145488050321 has 2 divisors, whose sum is σ = 145488050322. Its totient is φ = 145488050320.

The previous prime is 145488050249. The next prime is 145488050341. The reversal of 145488050321 is 123050884541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136556855296 + 8931195025 = 369536^2 + 94505^2 .

It is a cyclic number.

It is not a de Polignac number, because 145488050321 - 2¹⁴ = 145488033937 is a prime.

It is not a weakly prime, because it can be changed into another prime (145488050341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72744025160 + 72744025161.

It is an arithmetic number, because the mean of its divisors is an integer number (72744025161).

Almost surely, 2^145488050321 is an apocalyptic number.

It is an amenable number.

145488050321 is a deficient number, since it is larger than the sum of its proper divisors (1).

145488050321 is an equidigital number, since it uses as much as digits as its factorization.

145488050321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 145488050321 in words is "one hundred forty-five billion, four hundred eighty-eight million, fifty thousand, three hundred twenty-one".