145005531040 has 96 divisors (see below), whose sum is σ = 363910688064. Its totient is φ = 54412185600.

The previous prime is 145005531037. The next prime is 145005531067. The reversal of 145005531040 is 40135500541.

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, 748215 + ... + 921865.

It is an arithmetic number, because the mean of its divisors is an integer number (3790736334).

Almost surely, 2^145005531040 is an apocalyptic number.

145005531040 is a gapful number since it is divisible by the number (10) 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 145005531040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181955344032).

145005531040 is an abundant number, since it is smaller than the sum of its proper divisors (218905157024).

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

145005531040 is a wasteful number, since it uses less digits than its factorization.

145005531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173990 (or 173982 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 145005531040 in words is "one hundred forty-five billion, five million, five hundred thirty-one thousand, forty".