145041320321 has 8 divisors (see below), whose sum is σ = 147418820640. Its totient is φ = 142678820512.

The previous prime is 145041320297. The next prime is 145041320381. The reversal of 145041320321 is 123023140541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145041320321 - 2¹⁴ = 145041303937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145041320381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3730631 + ... + 3769308.

It is an arithmetic number, because the mean of its divisors is an integer number (18427352580).

Almost surely, 2^145041320321 is an apocalyptic number.

It is an amenable number.

145041320321 is a deficient number, since it is larger than the sum of its proper divisors (2377500319).

145041320321 is an equidigital number, since it uses as much as digits as its factorization.

145041320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500255.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 145041320321 its reverse (123023140541), we get a palindrome (268064460862).

The spelling of 145041320321 in words is "one hundred forty-five billion, forty-one million, three hundred twenty thousand, three hundred twenty-one".