145450411120021 has 8 divisors (see below), whose sum is σ = 170721718071680. Its totient is φ = 121302273366288.

The previous prime is 145450411119989. The next prime is 145450411120033. The reversal of 145450411120021 is 120021114054541.

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

It is not a de Polignac number, because 145450411120021 - 2⁵ = 145450411119989 is a prime.

It is a super-3 number, since 3×145450411120021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145450411120921) 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, 280792299201 + ... + 280792299718.

It is an arithmetic number, because the mean of its divisors is an integer number (21340214758960).

Almost surely, 2^{145450411120021} is an apocalyptic number.

It is an amenable number.

145450411120021 is a deficient number, since it is larger than the sum of its proper divisors (25271306951659).

145450411120021 is an equidigital number, since it uses as much as digits as its factorization.

145450411120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561584598963.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 145450411120021 its reverse (120021114054541), we get a palindrome (265471525174562).

The spelling of 145450411120021 in words is "one hundred forty-five trillion, four hundred fifty billion, four hundred eleven million, one hundred twenty thousand, twenty-one".