140450252520 has 128 divisors (see below), whose sum is σ = 448085779200. Its totient is φ = 35096211456.

The previous prime is 140450252489. The next prime is 140450252539. The reversal of 140450252520 is 25252054041.

140450252520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 316837 + ... + 617483.

It is an arithmetic number, because the mean of its divisors is an integer number (3500670150).

Almost surely, 2^140450252520 is an apocalyptic number.

140450252520 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 140450252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224042889600).

140450252520 is an abundant number, since it is smaller than the sum of its proper divisors (307635526680).

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

140450252520 is a wasteful number, since it uses less digits than its factorization.

140450252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300907 (or 300903 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 140450252520 in words is "one hundred forty billion, four hundred fifty million, two hundred fifty-two thousand, five hundred twenty".