145448755452 has 432 divisors, whose sum is σ = 508586262912. Its totient is φ = 34447714560.

The previous prime is 145448755451. The next prime is 145448755453. The reversal of 145448755452 is 254557844541.

145448755452 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 4 + 87 + 554 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (145448755451) and next prime (145448755453).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145448755451) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20933443 + ... + 20940389.

It is an arithmetic number, because the mean of its divisors is an integer number (1177283016).

Almost surely, 2^145448755452 is an apocalyptic number.

145448755452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145448755452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254293131456).

145448755452 is an abundant number, since it is smaller than the sum of its proper divisors (363137507460).

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

145448755452 is a wasteful number, since it uses less digits than its factorization.

145448755452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078 (or 7066 counting only the distinct ones).

The product of its digits is 17920000, while the sum is 54.

The spelling of 145448755452 in words is "one hundred forty-five billion, four hundred forty-eight million, seven hundred fifty-five thousand, four hundred fifty-two".