145221400505213 has 8 divisors (see below), whose sum is σ = 145272851345280. Its totient is φ = 145169957442240.

The previous prime is 145221400505179. The next prime is 145221400505219. The reversal of 145221400505213 is 312505004122541.

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 145221400505213 - 2²² = 145221396310909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145221400505219) 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, 35536133 + ... + 39411413.

It is an arithmetic number, because the mean of its divisors is an integer number (18159106418160).

Almost surely, 2^{145221400505213} is an apocalyptic number.

It is an amenable number.

145221400505213 is a deficient number, since it is larger than the sum of its proper divisors (51450840067).

145221400505213 is an equidigital number, since it uses as much as digits as its factorization.

145221400505213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888547.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 145221400505213 its reverse (312505004122541), we get a palindrome (457726404627754).

The spelling of 145221400505213 in words is "one hundred forty-five trillion, two hundred twenty-one billion, four hundred million, five hundred five thousand, two hundred thirteen".