145352224452 has 12 divisors (see below), whose sum is σ = 339155190416. Its totient is φ = 48450741480.

The previous prime is 145352224441. The next prime is 145352224481. The reversal of 145352224452 is 254422253541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×145352224452² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145352224452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6056342674 + ... + 6056342697.

Almost surely, 2^145352224452 is an apocalyptic number.

145352224452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145352224452 is an abundant number, since it is smaller than the sum of its proper divisors (193802965964).

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

145352224452 is a wasteful number, since it uses less digits than its factorization.

145352224452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112685378 (or 12112685376 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

Adding to 145352224452 its reverse (254422253541), we get a palindrome (399774477993).

The spelling of 145352224452 in words is "one hundred forty-five billion, three hundred fifty-two million, two hundred twenty-four thousand, four hundred fifty-two".