140530452 has 24 divisors (see below), whose sum is σ = 335903232. Its totient is φ = 45700800.

The previous prime is 140530447. The next prime is 140530459. The reversal of 140530452 is 254035041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140530459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142324 + ... + 143307.

It is an arithmetic number, because the mean of its divisors is an integer number (13995968).

Almost surely, 2^140530452 is an apocalyptic number.

140530452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140530452 is an abundant number, since it is smaller than the sum of its proper divisors (195372780).

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

140530452 is a wasteful number, since it uses less digits than its factorization.

140530452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285679 (or 285677 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140530452 is about 11854.5540616254. The cubic root of 140530452 is about 519.9043857732.

Adding to 140530452 its reverse (254035041), we get a palindrome (394565493).

The spelling of 140530452 in words is "one hundred forty million, five hundred thirty thousand, four hundred fifty-two".