145454522314021 has 32 divisors (see below), whose sum is σ = 161988791500800. Its totient is φ = 129901885698816.

The previous prime is 145454522313979. The next prime is 145454522314043. The reversal of 145454522314021 is 120413225454541.

It is not a de Polignac number, because 145454522314021 - 2⁹ = 145454522313509 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 (145454522314081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501341020 + ... + 501631066.

It is an arithmetic number, because the mean of its divisors is an integer number (5062149734400).

Almost surely, 2^{145454522314021} is an apocalyptic number.

It is an amenable number.

145454522314021 is a deficient number, since it is larger than the sum of its proper divisors (16534269186779).

145454522314021 is a wasteful number, since it uses less digits than its factorization.

145454522314021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300313.

The product of its (nonzero) digits is 768000, while the sum is 43.

Adding to 145454522314021 its reverse (120413225454541), we get a palindrome (265867747768562).

The spelling of 145454522314021 in words is "one hundred forty-five trillion, four hundred fifty-four billion, five hundred twenty-two million, three hundred fourteen thousand, twenty-one".