140530452520 has 32 divisors (see below), whose sum is σ = 316755191520. Its totient is φ = 56112328000.

The previous prime is 140530452511. The next prime is 140530452521. The reversal of 140530452520 is 25254035041.

It is not an unprimeable number, because it can be changed into a prime (140530452521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3097606 + ... + 3142645.

It is an arithmetic number, because the mean of its divisors is an integer number (9898599735).

Almost surely, 2^140530452520 is an apocalyptic number.

140530452520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140530452520 is an abundant number, since it is smaller than the sum of its proper divisors (176224739000).

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

140530452520 is a wasteful number, since it uses less digits than its factorization.

140530452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240825 (or 6240821 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 140530452520 its reverse (25254035041), we get a palindrome (165784487561).

The spelling of 140530452520 in words is "one hundred forty billion, five hundred thirty million, four hundred fifty-two thousand, five hundred twenty".