145452221433652 has 48 divisors (see below), whose sum is σ = 296395360652160. Its totient is φ = 61160058191232.

The previous prime is 145452221433637. The next prime is 145452221433773. The reversal of 145452221433652 is 256334122254541.

It is a junction number, because it is equal to n+sod(n) for n = 145452221433596 and 145452221433605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276100683 + ... + 276626989.

It is an arithmetic number, because the mean of its divisors is an integer number (6174903346920).

Almost surely, 2^{145452221433652} is an apocalyptic number.

It is an amenable number.

145452221433652 is an abundant number, since it is smaller than the sum of its proper divisors (150943139218508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145452221433652 is a wasteful number, since it uses less digits than its factorization.

145452221433652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712600 (or 712598 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 49.

The spelling of 145452221433652 in words is "one hundred forty-five trillion, four hundred fifty-two billion, two hundred twenty-one million, four hundred thirty-three thousand, six hundred fifty-two".