145747732502321 has 8 divisors (see below), whose sum is σ = 146374181291520. Its totient is φ = 145121291594272.

The previous prime is 145747732502303. The next prime is 145747732502327. The reversal of 145747732502321 is 123205237747541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145747732502321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145747732502327) 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, 36725216 + ... + 40499838.

It is an arithmetic number, because the mean of its divisors is an integer number (18296772661440).

Almost surely, 2^{145747732502321} is an apocalyptic number.

It is an amenable number.

145747732502321 is a deficient number, since it is larger than the sum of its proper divisors (626448789199).

145747732502321 is a wasteful number, since it uses less digits than its factorization.

145747732502321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940575.

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 145747732502321 in words is "one hundred forty-five trillion, seven hundred forty-seven billion, seven hundred thirty-two million, five hundred two thousand, three hundred twenty-one".