145048216321 has 8 divisors (see below), whose sum is σ = 145170868544. Its totient is φ = 144925608240.

The previous prime is 145048216307. The next prime is 145048216363. The reversal of 145048216321 is 123612840541.

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 145048216321 - 2³¹ = 142900732673 is a prime.

It is a super-2 number, since 2×145048216321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145048216381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10274950 + ... + 10289056.

It is an arithmetic number, because the mean of its divisors is an integer number (18146358568).

Almost surely, 2^145048216321 is an apocalyptic number.

It is an amenable number.

145048216321 is a deficient number, since it is larger than the sum of its proper divisors (122652223).

145048216321 is a wasteful number, since it uses less digits than its factorization.

145048216321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22071.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 145048216321 in words is "one hundred forty-five billion, forty-eight million, two hundred sixteen thousand, three hundred twenty-one".