145012255540 has 48 divisors (see below), whose sum is σ = 306540100944. Its totient is φ = 57622118400.

The previous prime is 145012255537. The next prime is 145012255613. The reversal of 145012255540 is 45552210541.

145012255540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 20548649104 + 124463606436 = 143348^2 + 352794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145012255496 and 145012255505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2576500 + ... + 2632180.

It is an arithmetic number, because the mean of its divisors is an integer number (6386252103).

Almost surely, 2^145012255540 is an apocalyptic number.

145012255540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145012255540 is an abundant number, since it is smaller than the sum of its proper divisors (161527845404).

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

145012255540 is a wasteful number, since it uses less digits than its factorization.

145012255540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56548 (or 56546 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 145012255540 in words is "one hundred forty-five billion, twelve million, two hundred fifty-five thousand, five hundred forty".